https://www.zillow.com/z/info/beware-of-scams-and-other-internet-fraud/
Report Scams and Fraud
If you find a fraudulent listing on Zillow, please return to the listing page and click “Report Listing” and select “Listing seems to be fraudulent or illegal.”
If you believe you have been scammed, report the incident to the FTC. If you sent money via Western Union or MoneyGram, report the incident immediately: if the recipient hasn’t collected the money yet, the wire transfer company can reverse the transfer.