Lost 80 games of double xp

Hey guys, I got my 200 games of double xp a couple weeks ago and applied all 200 games to my gamertag before the game even came out. It says I only have about 90 games of double xp remaining, but I definitely haven’t played anywhere near 100 games. I have played somewhere around 30-40.

Has anyone else had this problem? Is there somewhere I can call about it (dewxp or 343i)? Could it just be a glitch in the system? Anyone else experience this?