I have never payed for wow ive cheated the system kinda. What i do is go to my local redneck walmart, and they sell the WoW Gamecards. They are not sealed so i bring me cood old pocket knife cut the tape + wrapper and open it take the card and wala. I just walk aroun while im doing it so no one suspects it.
Its pretty lame but it works for me almost 2 years of free wow