В вики пишут, что они автоматически блочат аккаунты при подозрительных сделках
Automated suspension of accounts
Revolut, in common with traditional financial institutions, uses algorithms to identify money laundering, fraud and other criminal activity, but unlike the rest of the banking industry, Revolut's algorithms additionally trigger an automated suspension of accounts. Revolut explains that "the system is programmed to temporarily lock an account and place it in a queue, until one of our compliance agents can review the case".[33] Revolut seem uninterested in addressing this problem, so the pile of dissatisfied customers is increasing rapidly at the moment