I can see, you have already contacted EA TOS team.
I would just like to note, that EA TOS team and EA Support team are different teams.
QUICK: The support team can only check the status of your ban; for example if you didn't got the email:
https://help.ea.com/en/help/faq/contact-ea-help/
LONG WAITING (10+ days): If you want information on ban reason or wants to appeal the ban, you need to contact the TOS team:
https://help.ea.com/en-gb/help/account/information-about-locked-or-banned-or-suspended-accounts/
It acknowledges that the EA TOS team might make a mistake, which is why there's a last chance option. See below. :)
If You double-check the link and the quotes I pulled out for you...
...You’ll see that even after the final TOS decision, you still get one "last shot" (last chance option) by contacting EA Support.
LINK: User Agreement - Official EA Site
Quote #1 If you or someone using your EA Account violates these rules, EA may send you a warning or take action against you, including revoking access to certain or all EA Services, Content, or Entitlements, or terminating your EA Account(s) as described in Section 8.
Quote #2 If you believe that any action has been taken against your Account or device in error, please contact Customer Support at help.ea.com.
Community Manager
