FIX THE RANKING SYSTEM pls

Hello,

I hope this post is heard because this is becoming so frustrating. The ranking system for all game modes DOES NOT MAKE SENSE. I worked my way to Master Diamond in King of the hill since week 2 of the game and have been there ever since. Last night i played 5 games and won all of them leaving me at 27% Diamond master for KOTH. As of today i played 2 games in which i won and was MVP and nothing out of the ordinary for my skill level i was demoted all the way to diamond 2!!! Absolutely frustrating and there is no reason for this. The first game i played i went from master Diamond 27% to diamond 3 99% AFTER WINNING THE GAME. Second game i play in which i won i went from 99% diamond 3 to 99% diamond 2. FIX YOUR GAME.