Bug with MMR points

Hello, I came back to HoTS around week ago, and faced with the issue with mmr points:
Im playing with a friend who silver4 and i have bronze 5, the question is: we won around 15 games and he is getting for win 250-350 points, at the same time im receiving 25-50. WTF?
I cant up just 1 tier more coz for upgrade i need 1k poitns its around 100 games in row?)) really?
How to get rank upper? Im tired to play in this level, shall i create new account?

Same here, friend of mine getting barely any points. Around 100 for a win, while I get much more. I’m silver 5, he’s bronze 5.
His MMR can’t be that bad. It’s literally the lowest rank.