Hmm. You lost points to a cheater
How is getting them back not earned?
Doesn't matter what he did. He did it and it may've cost you. So you were compensated. I'm sure it's happened there was suspected cheating but it wasn't proven. They got the benefit of the doubt and the points maybe earned by foul play stayed with them.
"We have detected that one or more of your recent opponents has violated our Fair Play Policy. As compensation for potentially unfair rating losses, we adjusted your following ratings:"
I really do not want these rating adjustments not earned. Is there any recourse to the Admins?