Community ManagerHi there,
If the accounts are not connecting, I would suggest that you double-check to see if your EA account is not yet connected to another Steam account. You can do that by checking the Connected Accounts tab in your EA Account settings. If it's not connected, please refer to this article for instructions on how to link it: Linking your platform accounts to your EA Account.
In case you need any further assistance with this process, please feel free to contact EA Help: How to get help with your EA Account
