Use this form to provide information about suspicious or improper business practices that you are experiencing which may affect the general public. This form is only for consumer complaints.Please visit the robocall complaint form to submit robocall information. Complete the form below to report suspected tax evasion or fraud. Laws prohibiting unfair, deceptive, or abusive business practices protect consumers in each state. Use this form to file a complaint against a business. A copy of the complaint and submitted materials will be included with a request for a response. It shall be an unlawful, unfair, and deceptive trade practice for any person, firm, or corporation doing business in any area in which a state of emergency Laws §§ 28.79(10) (as amended Supp. The Michigan Consumer Protection Act prohibits false advertising, automobile odometer tampering, and other forms of deceptive trade practices.