To report cheaters ? which website can be used ?

I have been cheated during an audio deal to report these cheater's deal ? which websites can be used ? (besides audiogon.com ofcourse)
thanks

rademaker12-06-2001 7:49am

audiofreek79e3 Details Discussions Posts This discussion Message User 1 posts 12-13-2001 at 12:03am Copy Comment URL Report Comment Edit Delete Can you explain the details? Was it a store? Here? EBay? Who hustled you?