To be clear, you're currently able to connect to a wonderland.tf server and play, correct? Through investigation, you aren't currently banned here, nor on any similar named communities. The punishment you may be appealing is a spray-ban, for the reason you've explained above.
However, no evidence of this is available, and you may not have been punished whatsoever. Unless the steam account you're appealing for is a different account, there's no troubles here.
Can you confirm that it is the steam account linked to the forums that you're attempting to appeal for?
Failure to respond within 24 hours will result in an automatic closing of your appeal.