I have a stack of Nemo cards from DL. I never entered any of the codes. So I started to do that today. I've gotten through 6 of them and none of the codes work. Did I miss something? Are these codes no longer any good? I've been entering quest codes that are older than the Nemo codes but haven't had any problem with any of those. Now I'm afraid I might get banned for entering too many bad codes.