Sepcialization code applied to wrong account

Hello,

My Specialization priority alpha code was downloaded to the wrong xbox live account on my xbox. Somehow the content was downloaded to an old account that I do not have access to xbox live with, and has not been used in 2 years. I can’t use my code again to re-download it to the correct account either.

How can I fix this? I haven’t even played a single game on my other account. This really sucks.

Is there a way to contact 343 directly about this? I contacted xbox live support and they said that 343 handles all of this content.

UGH