What is wrong with my Halo Wars?

[ThatGuy]

i have entered the code on xbox live for the Mythic maps but it keeps saying that it is an invalid entry, does anyone know what to do?!?!??!?!?

 

[Nick]

If it still won't work after trying it again.
It means someone stole it.
They used a computer program to generate a random code to try and get the Mythic Map Pack Code.

Call Microsoft and bitch about it.
That's what I do

 

[Andrew H]

Double check to make sure the code is entered correctly and if you entered the code correctly and it doesnt allow you to download the map pack call microsoft and explain. Im sure they can give you a new code.