Hey ShippuSami,
Sorry to hear that there's been difficulty linking your Steam and EA accounts.
Unfortunately, we aren't able to directly help with account-related problems like yours here on the forums. Please contact EA Help and the team there, as they have the right tools and records to work with you and investigate this issue.
In the meantime, since it seems your Steam account has been linked, there's a possibility that it's connected to a different EA account. It may be worth trying to log in to your EA account with a different login method to see if the Steam account has been linked there.
Let us know how it goes, thanks!