This message is intended for a moderator to handle spam.
I received PM spam and there doesn't seem to be any way to report PMs.
I went to the help page here...
Decided the about us usually includes a contact method...
"contact us/report a problem" links to a missing URL...
So that is what I've got. Feel free to PM me and I'll copy/paste the spam message and user details; note they have zero posts on the forums so there should be a limit of say three messages a new user can initiate