Steam Now Offering Refunds
After being forced to instate a refund policy in Europe, Valve has decided to instate the policy globally. The statement by Valve says that most all products bought from the Steam store can be refunded for any reason, from the game being bought accidentally to just not liking the game, so long as it's within 14 days of the purchase and the game has not been played for more than 2 hours. However, if your purchase is past those restrictions, you can make an appeal for the Steam staff to take a look and you may still get a refund. Refunded money will go either into your Steam Wallet or be transferred by way of your purchase.
Games and DLC can be refund so long as the 14 day, less-than-2-hour-playtime requirements are met. In-game purchases from Valve games can be refunded within 48 hours, so long as the purchased in-game item is not consumed, altered, traded, etc. Steam will also add an option for developers to allow refunds on in-game purchases. Movies and games bought with a CD key or purchased anywhere outside of Steam are non-refundable. If you are banned from any game by the VAC, you will not be able to refund the game.