You can file a complaint right online! Or you can call the Housing Discrimination Hotline: (800) 669-9777.You can call toll-free 1 (800) 669-9777. If you believe your rights may have been violated, we encourage you to report housing discrimination. Fax: (215) 656-3449. If you believe you are a victim of unlawful discrimination, the first step to filing a complaint is to initiate an online inquiry using the form below. If your complaint involves a possible violation of the Fair Housing Act, the specialist will assist you in filing an official housing discrimination complaint. Gov and click on "File a Discrimination Complaint. Step 1: A person contacts HUD with a report of discrimination. Step 1: A person contacts HUD with a report of discrimination.