accidentally really messed up with the FOTUS code

Hello, I heard about the limited availability of the FOTUS armor and went out to buy the halo xbox one. When I went to set up my account from my previous xbox I realized that it was suspended due to long-time inactivity. I started calling customer service and the process of getting my account back but the time for the armor was coming to an end and we weren’t sure if I was going to be able to get my original account back so I made a new account. In the end customer service was able to get my original account back a day or two ago, but all my limited edition armors such as those that I was rewarded for playing and buying the xbox one, are stuck to the sub account. Is there anyone I can contact or anything I can do? I really messed up and I know its a stupid mistake but I would absolutely love using that armor with pride. Also, for some reason Teishin armor was unlocked on the side account aswell but not my main, if there is a reason for that i’d love to know. Looking forward (until dawn) to see if there is anything I can do