Hi Sarah10
Everything is, as it should be.

in your game with Merlin you WON 17 points - you had 8 points before that game and 25 points after that game.

in your next game vs. lala22 you LOST 17 points - your rating was back to 8 again.

in your last game you lost 8 points against Zanonglauber81 - your rating is 0 right now

kind regards, John