Any TKing is against the rules on the servers. If you have evidence of him TK'ing you on the NA server, you may submit a ban request in this very section. If your evidence is valid, then he will most likely receive a ban. I have never personally seen the banhammer not dropped if there is photographic evidence of intentional TK'ing.
Also the OP states that you polled him twice which could be viewed as poll abuse, fyi.
His counter poll could have been for you polling twice. You then admit to TK'ing him. You then aggravated him further by QMLing him. No wonder he submitted a ban request. XD
I swear, you remind me of the stupid criminals that admit to crimes accidentally on COPS.
for those not in the know on what COPS is:
http://www.youtube.com/watch?v=bLCUXs8q_Bo