I completed a monthly challenge for 30000 exp and upon completion i leveled up to a 49 and was about half way to a 50. i signed off for the night and when i came back on i lost the exp and was back down to a 47. but the challenge still said complete.
my question is who do i talk to about this? i tried xbox ambassador chat and they said contact 343 and this is were i ended up.
any ideas?