I still haven't got my specializations.

I bought the game the night it came out.
My email is valid.
If someone can direct me to where I need to go to get this figured out, that would be awesome.

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

https://forums.halowaypoint.com/yaf_postsm2019737_The-Official-Specializations-Email-Thread.aspx#post2019737

Specializations will be available to everyone early 2013.