cannot link my new steam account to my ea

Hey there, please note that if your EA account already had a Steam account linked before, you will need to link your new Steam account to a new EA account. 

When you link accounts, it creates a lifetime link to protect you from malicious activity and help prevent performance issues in your games. You can unlink your platform accounts from your EA Account if you want to link them to a different EA Account, as long as that EA Account has never had the same account type linked to it before in its lifetime. That means if you unlink an Xbox gamertag from your EA Account, you can’t link a different Xbox gamertag to it in the future. Once you unlink a platform account from your EA Account and link it to a new one, you can’t unlink it again for six months. Further information can be found here.