KingOfWorld_03
It would be whichever EA account that PSN was unlinked from before getting it linked to the current EA account you're using. I wouldn't be able to see any other accounts or emails you may have used here, so it would just be a matter of going through the linking process again but using the account details for your other account.
If you're not sure what other account or email was used, I'd try logging in with any other emails you've had in the past to see if there's an EA account associated with that email. You will likely need to get back in touch with support at that point to help get the accounts re-linked, as if you had just moved that PSN today there will likely be a cooldown before it can be moved again.