Curve is giving "free" money away, again.

About a year and a half ago, I reviewed the Curve debit card, and I went back talking about it when talking about foreign transaction fees. If you don’t want to go back and read the whole set of text, I’ll give a very brief description: Curve is a proxy-card, that allows you to connect a bunch of other debit and credit cards, and to decide when you pay (or, critically, shortly after) which card you want to charge your expense to. It includes a few features such as some amount of free (or cheaper) transaction fee spend, but the “proxy” nature of the card is the selling (or not-really-selling as I’ll explain later) point.

In my previous posts, I have made two main points about Curve: the first is that they give away for free most of the useful features of the service, and the other that they make no real sense in the UK, as one of the possibly biggest selling points (the foreign transaction free nullification) is vastly irrelevant: most high street banks have some offering with no foreign transaction fee, and I still venture that Santander is the best UK offering for globetrotters who need to use their card in many different currencies. Despite my fairy pessimistic view of Curve’s business plans, it seems like the management is taking a different view — even FT Alphaville wrote about their marketing campaign.

Speaking of pessimistic view — I am a bit skeptical about their marketing of “100 Cards in One”. While it would be a great feature a few years ago, in 2019 most of my spending goes through my phone, with Google Pay. While I have half a dozen separate cards, most of them are compatible with Google Pay, so I don’t carry them with me. The ironic exception being my company card. As it turns out, this is something that Curve can help with: it now supports Google Pay, and on a business trip I can proxy my expenses to the company card.

Now, one claim on their website that appears to mostly hold true is «Your gateway to money for nothing.» Because they do appear to run lots of promotions that give you free money. Indeed, in the past week I received two email from Curve: one to announce that they would give me £5 if I just used my card at all (which I did, just to see if they pay up), and another to tell me that they are giving a “Christmas gift” for all their users to select three new retailers to get their 1% cashback from. All of this for a “Curve Blue”, which is their totally free tier.

Speaking of the 1% cashback, when I signed up last year, Amazon was not one of the options, or I would have taken it. It was this time, so I did that, under the impression that one way or another I do end up buying stuff off them often enough, and in the next three months I may get some value out of it. Despite this, their paid offer is still pointless: they charge you £9.99 a month, and to cover that on cashback alone you would have to spend £1000 a month from those three retailers. And no, I don’t think the Travel/Gadget insurances that they peddle with the offer mean anything else — there’s a doubling of how much free cash you can get from ATMs, but they appear to have closed the loophole that allowed you to withdraw cash and get loyalty points, or cashback, from a credit card, without incurring in cash handling fees.

So yeah, it looks like they do give money for nothing. Well, for some profiling data I guess. The obvious question is where that money comes from, given that the free offering is just compelling enough, and their paid offering are… in one word, overpriced. As I said in the previous post on foreign transaction fees, Santander offers their All in One Credit Card for £3 a month, and is also 0% foreign transaction fees and comes with a 0.5% cashback on all purchases; recovering that monthly fee requires “only” £600/month spend across any vendor (and not just three), and if you spend more you can probably pay for the travel/gadget insurance separately. And since it’s issued as a World MasterCard (rather than a Debit MasterCard), it also allows you to use some of the available perks worldwide, including some airports’ priority lane at security (as it turns out, that includes Venice Airport, which is very handy since that’s where we fly in and out for to see my family.)

And if you want to compare with the Curve Metal offering at £14.99 a month, well, Santander offers a World Elite Mastercard at the same price point, which comes with the same 0.5% cashback (although capped to nullify the monthly fee.) Despite not coming with the insurances (which again I don’t find particularly compelling, it does have a discount for Santander’s own offering. And it provides LoungeKey access just as well, except that you don’t have to pay the £20 per person entry fee. Being a World Elite card, it also comes with a bunch of other perks, including a Boingo subscription (not particularly compelling to me either, but worth noting.)

Anyway, if you are yet to make your Christmas purchases, and are interested in getting some more extra cashback with Curve, you can download the app from their website and if you want you can sign up with the code BG2G3 to get another £5 out of the magic free money card (and give me the same.)

Speaking of Foreign Transaction Fees

In the previous post about Revolut, I have left open a topic that I wanted to move to its own post: foreign transaction fees.

For those who are not acquainted with the terminology here, with foreign transaction fee I’m referring to the additional fee levied by banks and payment card companies when you incur expenses in a different currency than the one the card was issued for. Sometimes (particularly in UK and Ireland) this is referred to as an “overseas transaction fee” — which is confusing, particularly for Ireland, where the fee is applied for expenses in GBP (which is not overseas, but rather “up the road”), but not in EUR (which is mostly oversea).

This is a different cost incurred than the possible bad exchange rate that the financial institution may be applying, and it has nothing to do with the various DCC scams that you may run into when going to touristy destinations with a non-local card, although there is a link there: even online, services may suggest you to apply the charge in your local currency to avoid foreign transaction fees — as you can see in the linked post, that’s rarely a good idea, with a few exceptions (e.g. PayPal actually applies sane conversion fees in my experience, even if not the best ever).

These foreign transaction fees are set by the card issuers, and vary widely. I have seen cards with up to 6% “fex fees”, but that was back in Italy (why I say that will be clearer in a moment). In Ireland, with the exception of various fintech companies, the typical fex fees were of 2-3% — I was very happy with Tesco Banks‘s 1.75% fex fee (Tesco Bank no longer operates in Ireland.) In the UK, it appears most cards either have 0% fex fee, or 2.99% fex fee; there are a few divergences, but those two appear to be the most common options.

The reason why I am specifying this information with a country attached is that, in addition to telling you what the currency is, the mix of local-vs-foreign spend for the average person is also connected to the country. For instance, for my friends and family living in Italy, foreign transaction fees only exist when buying from foreign websites (or eBay), or when going on a “far” trip — Croatia and Switzerland being the closest countries that incur the fex fee. On the other hand, if you live in Ireland, you’ll probably have at least one recurring expense in GBP — depending on how Brexit is going to go this may change.

Indeed, for electronics you often need to look at the UK, rather than the continent — because of plugs, regulations, availability, etc. And quite a few eShops with presence both in the continent and the UK used to refuse you service from the European website, referring you to the UK one instead — this is another thing that may change after Brexit. There is a reason why, when discussing markets, most companies call it “UKI”.

I’m told that a similar situation exists for those living in Switzerland, and I can imagine this goes similar in the Nordics, given that Denmark, Sweden, and Norway have their own currencies as well, and likely a lot of services overlap.

In the UK (and again this may change after Brexit), you may very well never spend money outside of GBP because all the services exist within the country. Unless you’re an expat, in which case you’re probably still visiting the continent (Eurozone or not) fairly often, or may be paying for ongoing services (such as cellphone contracts) in that currency. This probably explains why the two sets of fex fee groups: if you’re part of the first group, you probably don’t need a card with no foreign transaction fees — while you really do in the latter case.

In my case, I have two credit cards: one from Santander, which I spoke of last time, with no foreign transaction fee, and an American Express with a 2.99% foreign transaction fee. I effectively spread the expenses on the two cards, depending on where I am — namely I try to use the Amex in the UK, and the Santander anywhere the other does not work. I could give up on the Amex, as the Santander is strictly a superset usage, but the perks provided by Amex are worth having. And that’s the most important thing: cards have perks, so you should probably consider those as well.

Thus the utility of fintech services like Revolut and Curve depend on the country you live in not just because it sets the band for foreign transaction fees, but also because they set the tone of foreign currency usage. In the UK, with the wide availability of debit and credit cards with no foreign transaction fees, their services are likely less useful than in other countries — except when it comes to perks. Indeed in the case of Curve, you would be able to keep most of the perks of a credit card, such as cashback, even if the card comes with a hefty foreign transaction fee. Except for Amex of course.

But is it convenient for you to pay for such a service? That’s another very good question. And to answer it, I’ll try to forget about the UK and go back to Ireland — mainly because here, as I now repeated a number of times, cards with no foreign transaction fee exists and you can just use one of those. Metro Bank has free current accounts with cards that come with cards without foreign transaction fees in Europe. Santander has a £3/month credit card with no foreign transaction fees, and 0.5% cashback. Halifax has a Clarity MasterCard that comes with no monthly fee, no foreign transaction fees (and of course no perks.)

But let’s go back to Ireland and take a look at the options. As I said the usual foreign transaction fee in the country was between 2% and 3%. In the case of Ulster Bank, the card I used to have had 2.75% foreign transaction fee. At which point would it have been cheaper for me to subscribe to Curve Black, at €9.99/month, rather than give Ulster Bank their fees? (And for simplicity here, I’m not talking about exchange rates; the exchange rate for their MasterCard is network-provided so it’s not at all bad, and in fact it’s comparable to Revolut’s.)

As most services would require a yearly commitment, we should consider the spend on an yearly basis too. This makes the cost €119.88, but we’ll call it €120 to make it easier to run umbers on them. Let’s just call the twelve cents a rounding error. If we’re ignoring the cashback options (as in Ireland there were none, beside Tesco Bank), the amount of foreign expenses you’d need to break even on Curve black with the foreign transaction fee noted above is about €4364 (divide the yearly cost by the foreign transaction fee). That’s the cost of fairly big vacation for a family (note that you can’t include flights in the vacation cost, as those would be billed by the currency of the country of origin, which is likely local).

If you have a card that provides cashback, then things become more complicated, because you’d have to include the cashback in the calculation. If you’re curious the following formula will give you the number, making S the yearly subscription cost of the service, F the foreign transaction fee percentage, and C the cashback percentage:

(S + (S/F) * C) / F

For Revolut Metal, with their variable cashback, figuring out the number is a bit more annoying. But we’re also talking about 1% in the best case scenario (all non-European spend). So the basic number (€5673) only goes down to €5616. The 0.1% cashback option of all European spend is so minimal that it’s not worth calculating exactly.

So what should you do if you don’t usually spend that kind of money on foreign transactions? You can still use the Revolut and Curve and other fintech services without paying for them, and grab the best deal you can until they go bust. Or if you don’t want to bother, you can just spend on your normal cards, get your usual perks and ignore the need for no foreign transaction fees.

Indeed, if your options are spending on Curve attached to a debit card with no cashback and no perks, or spend on an American Express Platinum Cashback Credit Card, you would need to spend more than £5330 a year in foreign transactions for it to be worth it — and that’s assuming you don’t qualify for the higher tier. And this is probably the worst case scenario for the UK, for a non-zero foreign transaction fee card.

Is Revolut Still a Good Thing?

You may remember that a few years ago I wrote a positive review of Revolut, the fintech startup that provides payment cards with stored value and no foreign transaction fees. I have been using it for a long time by now, and had mostly stood by that review, until the second half of last year, where things started to appear more complicated. Given the current flurry of stories on the company, from silly advertising shenanigans to uncovering of poisonous working conditions, I thought it would be a good time to write some more up to date words, as I don’t think I can recommend Revolut as much as I did before anymore.

First of all, I started feeling uneasy recommending Revolut since they started down the path of selling cryptocurrencies as an added-value feature. I hold a personal belief that participating in the trading of Bitcoin and other similar “currencies” is unethical (see Thomas’s rant on the topic), and I don’t like being associated with companies focusing on them. I have looked the other way for a while, though, because I knew that using the words “cryptocurrency” and “blockchain” make money appear out of nowhere for most startups, even when there’s no rhyme or reason for it. I just had a bad taste in my mouth for this.

The problem is that Revolut, even when I had the Premium version, built something very cool, but a bit rough around the edges. And as a customer, it is annoying to see them jumping the shark onto cryptocurrencies, instead of making location-based security actually reliable, implementing 3DSecure/VBV integrations, or finding a way to get a proper banking license and FSCS insurance (all of which would be requirements for me and most people to use Revolut as a replacement for high-street banking).

Instead, what we see is that Revolut is adding “features” trying to upsell you into their premium services. This is not entirely bad, because you need paying customers to run a business. Unfortunately my impression is that they offered and offer so much on their free tier, that they are tackling on random stuff that has nothing to do with banking itself, just to get people to sign up for their Premium and Metal tiers.

As an aside, I still don’t understand this trend of providing heavy (“18g” as they boast some companies) metal cards. The last thing I want from a credit card is to be heavy, as I barely even want to have to take it out. I’m all in favour of the trend of not embossing the name and number, preferring to print it on the back, but it does not need to be metal for it. Indeed, Curve (that I’ll get again in a moment) did exactly that.

We’ve just come back from a trip to the Continent, and what we did notice that Revolut tried to upsell us medical and travel insurance at every change of country (even when we just connected flights through third countries). This is not just annoying as we’re not interested in it (we’re European citizens, visiting European countries, and work provides both of us with a basic travel insurance), but it’s also annoying because it makes use of the location information, which I provide for the security feature, for marketing. Similarly, I recently had more notifications about them trying to upsell me Metal than actual transactions.

For a while, I actually did pay for the Premium service. Mostly under the idea of “putting my money where my mouth is”, that is to make sure that the company could keep operating a service I loved. Unfortunately it turned out a bad idea: not just because Revolut cannot replace a high street bank in the UK (no FSCS to protect your account, no BACS direct debits, etc), but also because the Premium “perks” were not something I cared about, and the dedicated service team was still useless when it came to even telling me the top-up limits when I changed the card I used for top-up.

If you already have two physical cards (and paid for it), you need to pay to replace one of them with a Premium card, if you so wish (but it gains nothing but a different colour, so I never did that). The unlimited exchange is not particularly useful when you already don’t reach the free tier’s spend, and the ATM limits is only useful if you plan to actually use cash, which I really try not to. The one interesting feature that is advertised for Premium customers, but as far as I can tell is also present as a one-off charge for non-Premium one, is the disposable virtual card, that changes PAN every time you use it. But even that is not as secure as it looks, as I’m told that vendors are still able to charge again a disposable card that already changed number.

Okay admittedly there’s the travel and medical insurance, but as I said earlier, I get a better travel medical insurance from work (and probably there’ s better out there) and a credit card such as American Express would provide a better baggage/flight insurance. This is very subjective of course, it’s well possible that for other people, with other employers, and in other countries, these insurances are actually worth it.

Speaking of circumstances, I think I might not have felt so strongly against Revolut if I was still in Ireland. Not just because they seem to have implemented SEPA DD Core support, so you can actually use it to pay your bills there, but also because the alternatives of high street banking there are significantly worse than here.

In London, I now settled on Santander as my primary bank, both for the current account and for a 0% foreign transaction fee credit card, their All-in-One Credit Card. These come to £5 per month for the account, and another £3 per month for the credit card (compare against Revolut’s premium at £6.99 and Metal tier at £12.99), and while the free foreign ATMs withdrawal are limited to Santander’s own network (limiting the countries you can use them on), this is a full-featured, FSCS-insured account, with cashback, retailer offers, and active interest on the current account’s deposit. If you don’t want (or can’t afford) a credit card, Metro Bank offers 0% foreign transaction fee for European transactions on their free accounts’ debit cards. And I’m sure that other banks have similar arrangements all over the place. Basically, the UK has a significantly wider range of offers, that make Revolut less necessary than in Ireland.

But even for Ireland, and for other countries that do not have such a selection of high-street banks, Curve – that I complained about before – decided to change their target marketing a bit, now offering a “front” for any Visa and MasterCard card to provide 0% foreign transaction fee, with their premium option existing to raise the limit of monthly transactions. That would have been something awesome to have when I lived in Dublin, to keep getting Tesco points, while not paying the 1.75% of foreign transaction fee on their credit card. (If you are interested to try that, my referral code is BG2G3).

Both Curve and Revolut have a Metal card with which they provide cashback. In the case of the former, these are retailers-limited, and I can only assume they are based on some third party’s selection of perks, as the retailers are pretty much the same that Santander and Lloyd’s provide retailers offers for. Revolut instead provides cashback on all spend, 0.1% on European spend, and 1% for non-European spend (although there does not seem to be an obvious definition of Europe on their marketing material, I assume it’s deep into the terms of service).

While cashback is always a nice bonus, it only makes sense if you can break even on the cost of one’s service by spending. With Revolut Metal, that would be an astounding £13k (thirteen thousands pound) per month in European spend, or £1299 of non-European spend. I do know some extremely frequent travellers to the States or Asia that would be able to spend the latter, but that’s more of an exception than a rule. And if you can spend the former, you probably can get more than that in interest by keeping the money in an active-interest current account, and paying with a normal credit card.

For comparison, Santander’s card I linked above costs £3/month (you don’t even need their bank account). It has 0% foreign transaction fee on all spend. And a cashback of 0.5% (five times Revolut’s European cashback) on all spend. It takes only £600 a month to break even, and that’s without counting additional retailer offers, or additional perks from their current accounts.

And even if you look at American Express (which is never considered a cheap option) and their cashback options, the numbers are significantly different. Their Platinum cashsback card is £25 per year, and includes a better travel insurance, 1% cashback on all spend to £10k and 1.25% over that. Plus retailers offers and supplementary cards for the family. Although be warned if you want to go down that road, that American Express charges you 2.99% foreign transaction fees, for every single one of their cards in the UK.

I was going to take a detour talking about foreign transaction fees, but I will leave it for another post, because it’s a lot of content, and a lot of explanation to be done there.

So the final words of this post are: I’m not sure I trust Revolut anymore. They seem to be taking “marketing risks” to get people to pay for services, but at the same time there’s very little value in their paid services. I don’t think that the company will be able to sustain the current trajectory without venture capital money, and I find scary the idea of relying on a VC-funded pseudo-bank for my own money.

Update (2019-03-27): just a few days after I wrote this blog post, I received two email from Revolut, with widely different content, that I think merit a bit of description, thus why this update.

The latest email is an announcement of new details (new sort code and account number) for their GBP accounts. This is effectively a change in intermediary bank that maintains the GBP account proxies for Revolut. Nothing particularly eventful in by itself, but there are a few notable things. The announcement is declared “great news” for their customers, but it also highlight yet another feature that high street banking would have, and Revolut lacks: redirections.

When you switch bank account with a high street bank, the bank will take care of moving standing orders, direct debits, automatic salary payments, and redirect any transfer to the old bank account to the new one. Revolut is instead telling all the customers that they have to deal with all the required changes of both payment and transfer. Not just that, but they don’t appear to guarantee any specific grace period in which both accounts would exist: they say that the new details will appear in the app before May 22nd, which is when the old account will stop working:

⚠️ Your old account details will stop working from the 22nd May 2019.

Salaries and standing orders

If you receive your salary into your Revolut account, you’ll need to send your new account details to your employer before the 22nd May. Again, we’ll let you know as soon as they arrive.

For standing orders from your external bank to your Revolut account, you’ll need to update your bank with your new details before 22nd May. For recurring payments set up from your Revolut account to another bank, you don’t need to do anything.
Revolut email arrived on 2019-03-27

To give you an idea of time frame involved, the company I work for freezes the salary payment details around the 5th of the month for payments on the 25th. This means that if the new details arrive after 5th of May, and you’re paid monthly, you may be unable to receive the salary. Hopefully, the old accounts would just reject the transfer, but even in that case, retrieving the missing salary can easily take two weeks, which for a number of people would be a significant risk.

For comparison, the previous email I received just twenty hours before, also from Revolut, had as subject «👕Should we release Revolut merch?». This is a company that just before announcing a significant disruption of service, that a high street bank would never subject their customers to, asks whether you would like to wear their brand around, making yourself not just a product, but a walking billboard.

Update 2019-01-04: see also the October update.

A review of the Curve debit card

Somehow, I end up spending a significant amount of my time thinking, testing and playing with financial services, both old school banks and fintech startups.

One of the most recent ones I have been playing with is Curve. The premise of the service is to allow you to use a single card for all transactions, having the ability to then charge any card underneath it as it is convenient. This was a curious enough idea, so I asked the friend who was telling me about it to give me his referral code to sign up. If you want to sign up, my code is BG2G3.

Signing up and getting the card is quite easy, even though they have (or had when I signed up) a “waitlist” — so after you sign up it takes a few days for you to be able to actually order the card and get it in your hands. They suggest you to make other people sign up for it as well to lower the time in the waitlist, but that didn’t seem to be a requirement for me. The card arrived, to my recalling, no more than two days after they said they shipped it, probably because it was coming from London itself, and that’s all you need to receive.

So how does this all work? You need to connect your existing cards to Curve, and verify them to be able to charge them — verification can be either through a 3Dsecure/Verified by Visa login, or through the usual charge-code-reverse dance that Google, PayPal and the others all use. Once you connect the cards, and select the currently-charged card, you can start using the Curve card to pay, and it acts as a “proxy” for the other card, charging it for the same amount, with some caveats.

The main advantage that my friend suggested for this set up is that you if you have a corporate card (I do), you can add that one to Curve too, and rely on that to not have to do the payback process at work if you make a mistake paying for something. As this happened to me a few times before, mostly out of selecting the wrong payment profile in apps such as Uber or Hailo, or going over the daily allowance for meals as I changed plans, it sounded interesting enough. This can work both by making sure to select the corporate card before making the purchase (for instance by defaulting to it during a work trip), or by “turning back time” on an already charged transaction. Cool.

I also had a hope that the card could be attached to Google Pay, but that’s not the case. Nor they implement their own NFC payment application, which is a bit disappointing.

Beside the “turn back time” feature, the app also has some additional features, such as the integration with the accounting software Xero, including the ability to attach a receipt image to the expense (if this was present for Concur, I’d be a real believer, but until then it’s not really that useful to me), and to receive email “receipts” (more like credit card slips) for purchases made to a certain card (not sure why that’s not just a global, but meh).

Not much else is available in the app to make it particularly useful or interesting to me, honestly. There’s some category system for expenses, very similar to the one for Revolut, but that’s about it.

On the more practical side of things, Curve does not apply any surcharges as long as the transaction is in the same currency as the card, and that includes the transactions in which you turned back time. Which is handy if you don’t know what the currency you’ll be charged in will be in, though that does not really happen often.

What I found particularly useful for this is that the card itself look like a proper “British” card — with my apartment as the verified address on it. But then I can charge one of my cards in Euro, US Dollars, or Revolut itself… although I could just charge Revolut in those cases. The main difference between the two approach is that I can put the Euro purchases onto an Euro credit card, instead of a debit one… except that the only Euro credit card I’m left also has my apartment as its verifiable billing address, so… I’d say I’m not the target audience for this feature.

For “foreign transactions” (that is, where the charged currency and the card currency disagree), Curve charges a 1% foreign transaction fee. This is pointless for me thanks to Revolut, but it still is convenient if you only have accounts with traditional banks, particularly in the UK where most banks apply a 3% foreign transaction fee instead.

In addition to the free card, they also offer a £50 (a year, I guess — it’s not clear!) “black” card that offers 1% cashback at selected retailers. You can actually get 90 days cashback for three retailers of your choice on the free card as well, but to be honest, American Express is much more widely accepted in chains, and its rewards are better. I ended up choosing to do the cashback with TfL, Costa (because they don’t take Amex contactless anyway), and Sainsbury’s just to select something I use.

In all of this, I have to say I fail to see where the business makes money. Okay, financial services are not my area of expertise, but if you’re just proxying payments, without even taking deposits (the way Revolut does), and not charging additional foreign transaction fees, and even giving cashback… where’s the profit?

I guess there is some money to be made by profiling users and selling the data to advertisers — but between GDPR and the fact that most consumers don’t like the idea of being made into products with no “kick back”. I guess if it was me I would be charging 1% on the “turn back time” feature, but that might make moot the whole point of the service. I don’t know.

At the end of the day, I’m also not sure how useful this card is going to be for me, on the day to day. The ability to have a single entry in those systems that are used “promiscuously” for business and personal usage sounds good, but even in that case, it means ignoring the advantages of having a credit card, and particularly a rewards card like my Amex. So, yeah, don’t really see much use for it myself.

It also complicates things when it comes to risk engines for fraud protection: your actual bank will see all the transactions as coming from a single vendor, with the minimum amount of information attached to it. This will likely defeat all the fraud checks by the bank, and will likely rely on Curve’s implementation of fraud checks — which I have no idea how they work, since I have not yet managed to catch them.

Also as far as I could tell, Curve (like Revolut) does not implement 3DSecure (the “second factor” authentication used by a number of merchants to validate e-commerce transactions), making it less secure than any of the other cards I have — a cloned/stolen card can only be disabled after the fact, and replaced. Revolut at least allows me to separate the physical card from my e-commerce transactions, which is neat (and now even supports one time credit card numbers).

There is also another thing that is worth considering, that shows the different point of views (and threat models) of the two services: Curve becomes your single card (single point of failure, too) for all your activities: it makes your life easy by making sure you only ever need to use one card, even if you have multiple bank accounts in multiple countries, and you can switch between them at the tap of a finger. Revolut on the other hand allows you to give each merchant its own credit card number (Premium accounts get unlimited virtual cards) — or even have “burner” cards that change numbers after use.

All in all, I guess it depends what you want to achieve. Between the two, I think I’ll vastly stick to Revolut, and my usage of Curve will taper off once the 90 days cashback offer is completed — although it’s still nice to have for a few websites that gave me trouble with Revolut, as long as I’m charging my Revolut account again, and the charge is in Sterling.

If you do want to sign up, feel free to use BG2G3 as the referral code, it would give a £5 credit for both you and me, under circumstances that are not quite clear to me, but who knows.