Reports are a formal notice to a regulatory agency about an unwanted call from a telemarketer or debt collector. In the United States, they are sent to the Federal Trade Commission's (FTC) DO NOT CALL registry.
To create a report, press and hold the number you would like to file a complaint against.
From there, select the Report Caller option that appears on the top of the screen.
Next, specify the type of report and any additional notes about the report, then select Next to file the complaint.
For more information about the FTC, visit: https://www.ftc.gov/faq/consumer-protection/list-number-national-do-not-call-registry.