first off all an admin doesn't have to unfreeze you just cause you asked him too.
that was your punishment for ztele'ing from a zombie. instead of staying frozen and waiting for the next round to start, I guess you decided it would be a good idea to just disconnect and reconnect.
that would be avoiding your punishment and there for the reason why you got banned.
consider yourself luck it was just for 2 hours and not for a day or 7 days.
who ever the admin was good job.