Theft of my current e-mail account, on which I have a game account set up.

Hello. I encountered a very unpleasant situation some time ago. The email on which I have my account was stolen. That is why I am writing with a question. Is it possible to change my old email to a new one without being able to confirm it? Because I have purchased coins to buy a new character, but I need to confirm the purchase with my old email.
I have a great deal of evidence that it has indeed been stolen.
If this is not possible then at least transfer my old character to the new account with the coins purchased.