"We're sorry to hear you are having trouble with this game. Here is information from the Store and Community that we hope will help you find a solution. Support for this product is provided by: Bungie" I too am having this occur, having added funds, cannot make silver purchases - Steam thinks its Bungo problem. I daresay I am not the only one - you want money right? (I think Bungie have done a marvellous job with this expansion - very brave to do a server migration prior to a DLC release, thought I would get some silver to show my appreciation - server says no).