I sincerely apologize for the inconvenience you’re experiencing. I fully understand the seriousness of your issue, especially considering you've been involved with Madden Ultimate Team for 8 years – that’s a long time!
I see that you've already reached out to EA, but I’d like to point out that the EA TOS (Terms of Service) team and EA Support team are two separate departments:
1.) Quick Response: The Support team can only check the status of your ban, for instance, if you haven't received the email notification. You can reach them here:
EA Help
2.) Longer Wait: If you're looking for details regarding the reason for your ban or wish to appeal, you’ll need to contact the TOS team:
EA TOS Team - Information about Banned Accounts
I also noticed that you submitted an email to have your account unbanned, but you haven’t received a response in the past 4 days. Please be aware that the TOS team usually has a response time of 10+ days. ☹️