Whether you need to file a complaint, post a review, tell us about a misleading advertisement, or report a scam, you're in the right place. Attach any relevant documents that support your complaint, such as receipts, emails, or contracts.Complaints must be filed within two years of the event giving rise to the complaint. First, contact the business directly. Edit, sign, and share bbb customer complaint form online. No need to install software, just go to DocHub, and sign up instantly and for free. Fill in a Valid Bbb Complaint Template. The BBB Complaint Form is a tool designed for consumers to report issues with businesses to the Better Business Bureau. The form asks you to provide a clear statement of the problem you are having. In this statement, include important information and relevant dates.