Ladder issue / bug

Hello, I won my game by timeout 2 days ago, but no jump. In my list and my opponents list its still visible, and no change in rating has happened, see
Something similar happened some weeks ago: I won by timeout because my opponent stopped playing after apparently loosing the game, but he was removed, I got his place but no change in rating - is it useful to establish timeouts as a strategy to save your rating?
Thank you, Hans