Nobody here can help with your ban, only customer support. Try the link below for help.
Get information about your account lock, ban, or suspension (ea.com)
I think I should add, before contacting EA put a list together of any new mouse or keyboard since last played. List of any changes in software like keyboard and mouse software, any trainers installed like Cheat engine etc. Any RGB lighting software installed. See if they can see if your account was connected from another computer, as in hijacked account. Change your password!
