AFK Enemies - no rewards?

Hi to all.
The topic I‘d like to discuss is about afk enemies. Since I love playing Phobies I‘ve got nearly 50 matches going. It happened multiple times now that enemies are quitting the game when I was close to win. No, I don’t mean that they surrender. They uninstall the game and you wait three days to see if they finally finish their turn but no. I thought well the opponent kinda quit the game so he basically surrendered and I won the game. Are there ANY rewards for me? NO! I played multiple turns in matches for nothing…

They anyone know why you get no rewards? Please let me know.