If your account became banned via a legitimate error (Paypal chargebacks will flag your account as 'compromised', although it sounds like you resolved that) they will reinstate your account. It may take awhile and several calls, mostly because low level customer service doesn't have the power to reinstate banned accounts, but they will fix it 99% of the time.
However, being a developer I see ... about 10 of these exact posts per day (in our own forums). And maybe 1 per week actually gets unbanned. Do you know why? Because +95% of the time, you were knowingly doing something that should have gotten you banned and are just hoping no one noticed. We get a lot of "But my account got hacked, that wasn't me!", and then all their connections are from the same IP. So unless someone broke into your house, it was you. Or "I wasn't hacking" and yet they have like +80% packet loss ... because they are hacking. Or "I wasn't botting, I was just grinding" and then we see the logs where they were apparently grinding for 47 hours straight using the same 4 key presses.
So, short version: If you legitimately have not done anything wrong and it's just a mix-up or mistake, we can usually track it down and will always unban/reinstate your account.
If you were doing some shady shit, don't bother trying to hide it, because we know pretty much everything you've ever done while connected to our servers.