For general feedback about the game.Steam Support
Visit the support site for any issues you may be having with the game or Steam.
If you're looking to get into league-style competitive Team Fortress, sign up for The Highlander Open #3, an initiative to introduce non-competitive players into the competitive scene.
And what exactly is this, we hear you ask? Well check out their fantastic and visually pleasing Highlander Open Website!. It contains all the basics about what exactly the Highlander format is, and essential (light) reading for all who want to get involved.