This happened to me with buying a brand new Everquest Online Adventures game. Contacted SoE and all they said was return it and get a new one cuz that one is used and they cant do a thing about it. so thats your best bet just return it for another one and MAKE SURE YOU EXPLAIN that the game key DOES not work otherwise they will not take it back opened.
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[20:55] Darqflame: <3 U2 Kupo
Be Jealous
[14:24] nLoD: so it can't be all that hard can it?!
14:25] Pikko: obviously for magi it was really hard.. all the time
WoW: Retired
Uncleleo - 80 Undead Warlock Earthen Ring
Kishio - 80 Blood Elf Priest Earthen Ring
Elainebennis - 80 Blood Elf Death Knight Gul'dan
EQ2: Retired
Ishio - 80 Kerran Shadowknight - Crushbone
Ishiu - 26 Ogre Defiler - Crushbone
Ishias - 36 Conjy - Crushbone
Nerstinna - 16 Warden - Crushbone
>:3