Account locked for name

Ok, I need some help. My EA account was locked because of my gamertag, but when I go to manage my account to change my gamertag on EA's side, the option is grayed out. The next time I log into Battlefield 6, I'll get an even longer ban...but I have no ability to fix the problem.
Anyone have any ideas? I've played every Battlefield game online with the same gamertag since Battlefield 2, and its never been an issue...