Can’t access my account

Been trying for months to get my account back. My account is about 10 years old, I’ve done tons of sales but I no longer have access to my old phone number. I got my email back(hadn’t used it in years). I went through the recovery process and I had 2 step verification on. I’ve sent emails with no response. Not sure how to get a hold of someone but I would like to start selling on Amazon again and don’t want to create a new account when I have one with history.

Any help?