Dear Renegade63,
Some points from the other people here are very good and true. I will list all up.
1. Writing in caps lock does not help or make your arguments stronger.
2. Because some people in steam say jump out of the window, you are doing it?
3. As you can see the bansystem works, as the Teamkiller got timebanned. And you got also a response of your report email. So be happy!
4. You got a ban, because you did something vs the ToS rules.
5. The only correct way is / was to Email relic and ask them. You will get an answer how long and for what kind of reason.
6. Do you know what calls weekend / vacation? oO. Relic will not work at the weekend and also on Monday was a vacation day...
7. Admin abuse. Do you really believe this? There is just 1 salty guy spamming the forum and reddit. So its just 1 person

8. You don't get a permaban for teamkilling btw; it's a timeban.