For general feedback about the game.Steam Support
Visit the support site for any issues you may be having with the game or Steam.
Sign ups are still open (Four for the KritzKast Low-Fi Offclass Cup until Saturday 12:00AM EST. Interested in something a little different? Players are limited to no more than two of each: Pyro, Sniper, or Spy and only one Heavy, Engineer, or Medic. There's a few unlocks white listed as well, more details can be found in their announcement. Specific sign up details are available here.