Anyone else LOSING rank in Halo 4?!?!

This is the second time this has happened to me. 2 days ago I was halfway through the XP on level 99. I just logged in and I was set back to halfway through the XP on level 97!!! A week and a half ago I got set back 1 level… This is getting old and VERY frustrating and of course XBox Live support can’t help (just directed me to here) and I see NO support contact info for 343…

HELP!!!

Fascinating.

I wish I could offer any experience as far as the drop back to 97, but the second one is only a temporary issue, I believe.