[2023] Issues with linking PlayStation Network accounts to EA.

You won't be able to link a different PSN account to an EA account that has previously had a different PSN account linked.

Each EA account can only have one account from each other platform linked, which is likely why you're seeing that error.

This won't give you the option as a result, but you can try reaching out to support directly to see if they have any other options available to help get the correct accounts linked.