call of duty uo help

[Ocer 939]

i didnt know who else to turn too... but when i enter my uo cd key during instalation it says INVALID CD KEY and then it calls me a name ok so it doesnt call me a name but its frustrating and i dont know why its happening

 

[hewhohasissues]

COD has major key problems, I brought an legit copy and I've never been able to play the multiplayer due to "invalid cd-key" crap.