So, i just recently got back to WoW this past Christmas, and also bought a 2-month prepaid game card. I just used up the free month of game time, but now i cannot use the card that i bought. I've checked all the numbers a dozen of times, and it doesn't even give me an error message to indicate where i went wrong (invalid code) etc. It just stays on the same window when i try to proceed, and i am told to check where the error is. Just checking to see if there's any solution to this before calling the support guys.