Just reach level 70 and I still have no code

So I’ve been playing Halo 4 since the 6th of November and I still dont have a specialization code. I’ve looked in my email and on my xbox account and there’s nothing. I don’t want to play Halo 4 right now because I don’t want to waste my double xp games getting no xp. So if somebody could explain where I can send a request for a code that would be great.

Specialization codes have been distributed. For more information on the distribution process, check this post