File a complaint against a business with BBB, search for a business to file a complaint against, or find out the status of a complaint you submitted. Download. You may also complete the consumer complaint form and deliver via postal mail, email or fax using the contact information below.File an Online Complaint. If you created a BBB consumer account, you can sign in to view complaint(s) that you've submitted. You can then fill it out on your computer, print it and send it in. Use our online form to answer a few questions about your issue. Please provide as much detail as you can. Who is Filing this Complaint? Scammers use this opportunity to trick busy shoppers into giving out their personal information. Do not purchase or reproduce fake COVID19 proof of vaccination cards, and do not fillin blank vaccination cards with false information.