cheating

There's the possibility that they looked over the game you thought proved unfair play but either there wasn't any *definite* proof or they might've thought there were equally likely alternate explanations. You did the right thing by reporting it though.

Staff doesn't normally respond to cheat reports
If you report someone and their account isn't closed in a few days then either
- There's insufficient evidence of cheating
- There's no evidence of cheating
That said, discussions of cheating, potential cheating, or cheat detection are not allowed in the general forums. If you would like to discuss join the following club.
https://www.chess.com/club/cheating-forum