Talked to the guy who purchased my old Discord account. Admitted to it and his group did too.

What can I do to get my account back from this? I have the usernames and numbers associated with them. Screen shots and ect ect. along with tons of friends and servers I was apart of seeing this person on them talking. He keeps wanting to talk in voice. But I have tons of proof him and his friends sold and purchased my account for "60" dollars.

What should I do next? Discord support was no help for way more than a month of not hearing from them.