Linked account expired

Hey everyone, I'm going crazy. Ive not been able to play FIFA for over a year because my EA account is linked to an email that no longer exists. Every time I sign into FIFA, it asks to verify my email, which I literally cannot do. 

Ive submitted over 15 tickets with online support, attempting to verify my identity, providing proof of purchase, and any receipt I have, but somehow Im answering a question incorrectly. They can't tell me which one I got wrong, only that im "very close and should keep trying".

This is quite literally ending my FIFA career. Ive been playing since FIFA 12 on the PS4, same PSN and EA account, but as of a year ago, my EA account is locked up in this mess and therefore I cant play.

I don't even care about my old EA account, ive made a new one, but I can't sign out of the old account. It's linked forever???