you can try your luck here for more codes: http://forums.toucharcade.com/showthread.php?p=2909483 good luck!
here is the main thread for the game now: http://forums.toucharcade.com/showthread.php?p=2909468#post2909468
damn lol..i mention about promo codes and then i dont check back in time and you reply with promo codes and then other ppl take them and i am left with none