help with progression system glitch?

Keep losing credits or points or whatever its called when I start playing again. Finished season 2 for sp ops and I was halfway to leveling to the next level. I had my suspicions that it happened before but I blamed it on being late. But this time I returned to homepage after I finished season 2 then played halo 4 again and I was knocked down too just 9000 when i was halfway to leveling up. What gives?

Anyone else having this problem?