There are some types of account bans that might not appear on the ban history page. That said, I'm afraid that account bans aren't something we can look into here on Answers HQ.
If you haven't already, please reach out to the Terms of Service team so they can take a look at your account. They'll need to determine if the account ban can be lifted. For more info on how to set up a case with them check out the EA Help website.