Awesome, won a steam gift! Too bad it wont open :(

Woo, won a gift! BUT! I am having trouble with steam gifts! I purchased Frozen Synapse - Two Pack on 12/23 and it never showed up in my gifts account and now I have recieved a copy of Worms Reloaded! and I cannot open this either. Please help this is very frustrating :(. Can anyone help me?