Fc mobile account overwritten by second account

Hello EA team, I'm having an issue where my FC Mobile account is linked to the wrong EA account. I still have access to both EA accounts (email and password), and I'd like to transfer my FC Mobile progress to my original EA account. Please help me unlink and re-link my account to my main EA account.

I haven't been able to log in to my account for almost a week because it was accepted as a second account. I've reported it to EA support but there's still been no serious response. Please help anyone who has had this problem.