Find information and tools to submit a consumer complaint to the Consumer Financial Protection Bureau. Learn where to file a complaint about banking and investment products, retirement plans, and the companies and professionals that offer them.Fill out this form to complain about language access services in the California courts. Provide as much detail as possible. Formal Complaint Form (CLICK HERE). STEP 1 Fill out and sign Form DHS7001, Case Problem Submission Worksheet, which allows the Ombudsman's. Complete a Vendor Complaint Form, which may be obtained from the. Complete a Vendor Complaint Form, which may be obtained from the. Have you got a question, concern, or complaint about a bank? San Bernardino, CA 92408.