@bruno1505 Sorry for being late about this. You should be able to check your data log entries for information that is related to your EA account. Things like IP addresses, locations, dates, times, email changes, etc. That should help with proving that someone else had gained access to your account.
As for the confirmation code is it possible that your email was compromised at some point or that you didn't enable 2F authentication for your EA account? These are usual the reasons why hackers can gain access to an EA account without the users knowledge.
EA for some reason are very strict on account violations even when it is not the users fault. I've seen cases where people's accounts were still banned even when they showed proof that they were hacked so unless they changed the way we can directly contact the Terms of Services team I don't see how we can convince them when dealing with complex issues like these since contacting them by email and receiving generic emails in return with a 3 appeals rule applied seems very flawed to me.
