Um die Frage zu beantworten wie schicke ich eine EMAIL an Steam!!!
Registriert euch auf der Steam Seite dann bekommt ihr eine Bestätigungsemail
Dann auf Support und den PUNKT "Contacting Valve Billing und Support"
und in Punkt 4 steht ASK a QUESTION einfach anklicken und los gehts !!!

Dear Valve Team,

You updated the game "Day of Defeat: Source" to "Day of Deafeat Source BETA" but, we bought the Game "Day of Defeat: Source" and not DoD:s BETA ♥♥♥♥. We want get our MONEY back! This isnt an Update, this is a change. You swaped the Games! This isnt Day of Defeat, this is Team Fortress! You cheat all the Steam users!
You got two options:

option A: give us our money back
option B: reset the game to its old version


Think about it! You've destroyed the game, the leagues and the Fans, that played this game!

It isn't admissible, that you drop a whole community!

Don't think you'Dd do the right thing! It was wrong and now you get your bill!

So long, the Day of Defeat: Source GAMERS