If you are going to submit a complaint form to us, please make sure to include COPIES of any supporting documents such as contracts, invoices, receipts, etc. Explain the problem.You may complete a complaint form online or download one of our complaint forms. For further assistance call our Consumer Protection Hotline at 1-800-552-9963. Be clear and concise. Describe the item or service you bought and the problem. Fill in the name, address, email address, and telephone number(s) of the person you are filing a complaint against. Consumer Action offers a sample complaint letter and an email complaint template. You can cut and paste these documents below. Find information and tools to submit a consumer complaint to the Consumer Financial Protection Bureau.