Sorry to hear about your experience.
Unfortunately the rules state with suspected AML procedures (Which maybe the reason you may have been locked out of your account) is that you are required to wait for the initial time period of up to 7 days if you live in the U.K.
Revolut will never tell you the reason why your account is locked as it would be illegal to do so as it’s a legal term called ‘tipping off’ and subjected to them being fined, or that particular individual arrested for disclosing the information.
If Revolut has been instructed otherwise by the NCA (National Crime Agency), you may need to wait up to 31 calendar days before you have a response although in extreme circumstances it may take even longer.
Some useful information.
Also if you don’t live the U.K, I strongly recommend to check the laws in your own jurisdiction so that you can better understand the process and get legal advice if Revolut is playing hardball after the timeframe.
Sorry I couldn’t be more helpful to you.