My account has been accessed by unauthorized user

Hello,

It has been more than a year I have been trying in contact with EA help, but until now the problem hasn't been solved at all.

Someone has access to my account, my account is linked to both my apple and google account which was the same email too (and yes both is secured by 2fa) all the resources has been used everytime I logged in, and sometimes get an error message (screenshot attached), my ea account keep being unlinked every week, I do have some proof of ownership like last purchase receipt before the account has been compromised.

The account progress is 10 years old which now has reached almost 14m GP, im so confused why is this happening.

Thank you.