Client

So I was playing Leagues today and wanted to play ranked. I played my first game as support Nunu and won it, I had the "waiting for stats" screen for awhile after the game and so I skipped waiting for stats. it didn't show an IP gain or anything so I logged out then logged back in. still nothing so I thought I would play another game and maybe it will sort itself out. I lost my next game and was demoted and I was not sure why. I looked at my match history and the client tells me my previous game never existed but I can go on other websites and it will tell me that my game happened and that I am not demoted. But while playing I have been demoted and I need to start over again. I don't know how to fix this. Please help!