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Submit a Complaint to the Competition Authority

The only way we can stop anti-competitive behaviour in Ireland is to be aware that it is taking place. If you are aware of such behaviour we would strongly encourage you to inform us. There are a number of ways to register a complaint. The most common way is via this Make a Complaint form, but feel free to contact us:

  • Via Email to: complaints@tca.ie
  • Via Phone: 1890 220 224 (intl.:+353-1-8045400)
  • Via Fax: +353-1-8045401

Or you can send written complaints to:

The Competition Authority,
Parnell House,
14 Parnell Square,
Dublin 1.

As a general matter, we will do everything possible not to pass on your details to any third party; however, it is important to note that the Authority may need to divulge information that it has obtained, including the identity of the source, to the firm under investigation. If you do choose to supply us with your contact details, the accused party will not be made aware of your identity as the complainant without this being discussed with you beforehand. If there is a good reason, it may be possible for us to protect your identity; and, we would ask that you raise this concern with us at the earliest possible opportunity.

You should also be aware that there may be instances where we could be legally required to divulge your identity and the details of the information that you provide us, e.g., in legal proceedings or under certain provisions of the Freedom of Information Act, 1997.

If you wish, you can submit an anonymous complaint to us, but you should be aware that there is no guarantee that the Authority will be able to take action. We can only act on such complaints if the information is verifiable and of sufficient detail to be useful.

For more information please go to the Frequently Asked Questions section.

Please give us your contact details:








Name & Addresses of Parties Complained About:











Complaint Section:












A Consumer
A Customer
A Supplier
A Competitor
An Employee
A Former Employee

Details of anybody who may be able to provide further information
regarding this complaint:



























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Date Printed: 25 April 2014

© The Competition Authority 2014