My PlayStation account is linked to a hacker’s banned EA account – what to do?

Hi everyone,
I recently found out that my PlayStation account is linked to an EA account that I never created. After speaking with an EA advisor, I was told that my ban is related to FIFA. I’ve never even touched the game, so I checked my PlayStation transaction history and noticed several FIFA 17 Points purchases from 2017 that I didn’t make.

On that same day, my PlayStation account was hacked and a PayPal transaction was made using it. At the time, I contacted PayPal and received a full refund after they confirmed the transactions were unauthorized. I never thought much of it until today, but connecting the dots, it seems the hacker used my account to buy FIFA points, created an EA account using their own email, and linked it to my PSN.

Now, years later, after trying to link my PSN to my own EA account, I discovered that my PlayStation account is still connected to a banned EA account. I can’t unlink or access it, and EA says I have to appeal – but I can’t log in since it’s under the hacker’s email.

What can I do to get my PSN account unlinked from the hacker's EA account?