A consumer complaint is a report by a consumer describing a problem with a product, service, billing practice, disclosure, or marketplace conduct.
Consumer complaints may be sent to a company, government agency, regulator, attorney general, credit bureau, marketplace platform, or dispute-resolution program. A complaint is usually a record of the problem and requested response, not a court filing by itself.
Why a consumer complaint matters
Complaints create a timeline. They can show when the consumer noticed a problem, what the consumer told the company, how the company responded, and whether the issue was corrected. Regulators also use complaint patterns to identify unfair, deceptive, abusive, or illegal practices.
A complaint does not automatically prove a violation. It is evidence of what was reported and may lead to investigation, resolution, refund review, account correction, or further dispute steps.
Where it appears
Consumer complaints appear in billing disputes, warranty issues, credit reporting, debt collection, subscription problems, data breaches, deceptive advertising, online purchases, financial services, housing services, and telecom disputes.
How it differs from nearby terms
A consumer complaint is different from a complaint in court. A court complaint starts or states claims in a lawsuit; a consumer complaint usually reports a marketplace issue to a company or agency.
It is also different from consumer protection, which is the broader body of laws and enforcement systems that address marketplace harms.
Practical example
A consumer is charged after canceling a subscription. The consumer files a complaint with the company and includes the cancellation confirmation, billing date, account number, and requested refund.
Related terms
Quick check
A consumer complaint records a problem and asks for a response. A lawsuit complaint asks a court for legal relief.