I purchased a code from the store for a forged tool of artifacts. Tried to apply code, got message code invalid... So went to site and put in a call me request. Very nice fella Mathias gave me a call. Turns out they are sending the code at least for this item, not sure about others. In the wrong format. The code I received was dddd-dddd-dddd-dddd-dddd-dddd-dd so 5 sets of 4 with 2 on the end. It should have been the first set 6 chars long followed by 4 sets of 5 chars. For example hhhhhh-hhhhh-hhhhh-hhhhh-hhhhh. Rearranged my code and worked like a champ.