Adding extensions to EA account

I can't add my Steam account as an extension to my EA account because the connection was made through another email. I'm waiting for your help. I've been trying to reach you for a week.

This is the notification I received

Your accounts cannot be linked because your Steam account \u0131m rahzel is already linked to your EA Account for ch*****@frontomaxmails.ru. An EA Account can only be linked to one Steam account.