Halo 4 LE - "code has already been redeemed"

So I haven’t been playing Halo for quite a while now due to lack of time, but I finally got some spare time and was about to download the new mappack when suddenly, for some reason, I don’t have the map pass?! I did buy the Limited Edition of Halo 4, and I did redeem all the codes on launch-day, so that’s why I can’t redeem it now. BUT I CAN’T DOWNLOAD THE MAP PACK EITHER?!?!

I feel so ripped of right now that it’s almost funny, I wanna sit down in a corner and cry myself to sleep and never look at a Halo-game ever again. (not really, but almost)

So… am I the only person with this problem? How did it work for you other people? Could you just automatically download the map pass? 'cause for me it says it’s 2000 Microsoft points… wich I ofcourse won’t pay 'cause I already payed it with the Limited Edition.