cant sign in to ea account on battlefield 2

The steam version is out of serial keys and the only way to get multiplayer added is to have ea add it to your account using either this forum or https://help.ea.com/en/contact-us/ however it seems this link at the moment does not have live chat or email they are disabled so I recommend using this forum instead. If you do have the base game serial key activated on your account try Turning off 'remember password' and log in again on the game and it should let you at least login but it will ask for a serial key if you haven't activated the base game.