How the CMA handles information and complaints about businesses

This guidance explains how the CMA handles information and complaints we receive about businesses and business practices.



The Competition and Markets Authority (CMA) aims to promote competition for the benefit of consumers. This guidance sets out our approach to handling complaints about businesses. We welcome information about practices in the marketplace, but can’t respond in detail to individual complaints.

Information about competition issues or poor market practices can be submitted to us using our notification form.

We will acknowledge receipt of completed forms, but can’t normally enter into correspondence about our decisions on whether to give detailed consideration to the complaints we receive.

Published 27 November 2014