I recently sold some bitcoin and was told not to do it again by the bank. I have been communicating about this for two months now and wrote two complaints.. one to the bank and another to a government agency.
The issue is thay I bought the bitcoin anonymously 10 years ago and kept it in cold storage. They don't understand that. It's has been a shit show, really.
I was also told to prove that the bitcoin belonged to me when I sold it, but they refuse to tell me exactly how they want to get this proof and I refuse to guess what they want and this is a stalemate for now.
I'm being helpful and await their precise instructions about what kind of proof they want ..
Clearly the bank doesn't know anything about crypto currencies.
Edit: I paid taxes and can prove everything. Just to make sure that this is not something illegal going on. :)