Customer discovers closure after a supermarket card decline

Card declined at the supermarket. Turns out Revolut had closed my account of 7 years without telling me. I'm at the checkout, groceries on the belt, people behind me. Card declined. Tried again. Declined again. Pulled out my phone and there was the notification: account closed. No warning, no email beforehand, no reason given. Just closed. I've had this account since 2019. Seven years. Never had a single issue with them, never got a transaction flagged, never had to send them a document. Salary in, rent and groceries out. No crypto, no big transfers, nothing unusual. A completely…