1 You may also file a complaint if you received a call that used a recorded message instead of a live person (whether or not your number was on the Registry). 2  Reminder: Even if your number is registered, some organizations may still call you, such as charities, political organizations, and telephone surveyors. Debt collectors may also continue to call you whether your number is on the Registry or not. 2  If you have a complaint about a debt collector, please Click Here to file your complaint. 3  For more information about your rights regarding debt collectors Click Here.