MORTISALUCARD

i didnt get a code to my email but i got one on my xbl account i looked at it just to make sure it was it ... i turned my xbx off i signed back on a few hours later my message wasnt there any longer as if some one deleted it im a sr67 i really need that code! 343 needs to answer us im super pissed because i have 19 double xp matches left ! i need this code ! some one please help