Before filing a Written Statement of Complaint, complain directly to the person, firm, or owner of the company that sold you the item or performed the service. Here's a sample to help you write a complaint letter about a product or service.Fill out online Consumer Statement of Complaint form here. Download and print Consumer Statement of Complaint Form (PDF) to mail in here. Forms ; Complaint Verification. PDF ; Summons with Notice. We will share 30 customer service email templates for every situation. Whether it is about handling angry customers or sharing one-click responses. Get a printable Verified Complaint form template in Word format. In certain circumstances, the complaint must be verified, which means signed in a certain format under oath, before a notary. See.