They under various pretexts do not give access to the account, which I have not logged in for a long time. I have access to my mail, and I also have 2FA. I've also sent them the documents. Now they require TX transactions that I transferred to their exchange, but I do not remember it was at least 3 years ago. Probably they don't have money for payments, as soon as they found out that I want to log in just to withdraw cryptocurrency, they immediately started looking for reasons not to give me access.