Can't unlink from hacker's EA account

A few months ago I unfortunately got hacked and had to deal with people trying to get into about every account I have.

I was able to recover most of it, including my Steam account, but now I've just gone to launch an EA game through my Steam account, and I can't because the email it's linked to is not mine. 

The problem is account linking is managed by EA and when I tried to link it back to my actual EA account, I was given the message attached that basically said sorry lol.

The ho*****@hotmail.com is not mine and I have never had anything to do with it, and now I essentially cannot play any EA games because I have some random hacker attached to my account.

Does anyone have any advice on how to unlink this email.

Thanks.