N7xDante

Hey guys, I'm currently stuck at SR 70. I understand why, but never received an email from 343 with my unlock code. I got a message on xbox but accidentally deleted it, not realizing it was them reaching out to me for the code. Does anybody know what I can do to get another code? I poked around the forums, but I'm not really good at the whole forum thing. Thanks for the help Cheers N7xDante