Customers like Revolut are not in such a desperate position. It was wise enough to have multiple providers, and has switched seamlessly.
Now, from his eyrie in Canary Wharf, founder Nikolay Storonsky should ponder the deeper opportunities at hand.
Wirecard is a goner, but its software and licence to process card payments for merchants (known as "acquiring" in the lingo) could come up for sale in its liquidation.
Storonsky should put in a bid.
Why? Because building from scratch a platform robust enough safely to hook up to Visa, Mastercard and the banks costs a fortune in time and money.
Wirecard's platform may have had a careless owner, but it is built, roadworthy and ready-to-go.
It would be a quick route to Revolut getting an acquirer's licence and putting a turbocharger under its recent push into the business banking market.
Not only that, but it would save Revolut a bunch of fees for other acquirers' payment processing services.
Storonsky raised $500 million from investors in February, just before covid hit Europe.
If he could use some of it to buy the Wirecard platform for a song, he'd put Revolut up there with Adyen and Worldpay as a player in this moneyspinning corner of financial services.
And what does "moneyspinning" look like? Last year, Adyen made an underlying profit of e126 million. That was up 79% on the year, fuelled by profit margins of 57%.
Even if you don't like the sound of that, Nikolay, your new investors might.