The OP said he got the got the 3750 points yesterday ( post 1 ). He did not know about the room being comped until checkout today ( post 19 ).

It sounds like someone at they property realized they made a big mistake and gave the OP compensation. Or maybe it was to shut him up so the GM does not hear about it, maybe both. We will probably never know the reason. We have only heard the OP's side but assuming the basic facts are correct I now think he was well compensated.

Lack of communication on the part of the hotel appears to be the root cause. They did not tell him the correct info and they failed to anticipate and handle correctly a busy situation at the property. The OP did not state which W it was but from the first post I think I know which one.