Better Business Bureau

Website: https://www.bbb.org/consumer-complaints/file-a-complaint/get-started

Contact BBB to look up a business to file a complaint about a business or charity. All types of businesses – online, offline, BBB Accredited Businesses, or non-accredited businesses. Also charities and non-profits. Complaints relating to marketplace transactions, including advertising claims. Note that this is an industry organization, and while it can use ‘moral suasion’ it does not have legal remedies available.