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Making a Complaint 

If you want to make a complaint regarding behaviour which you believe may be a breach of any of the legislation that Ofgem has the power to enforce, please contact the Enforcement Team at the following address:

Enforcement Team
Corporate Affairs
Ofgem
9 Millbank
London
SW1P 3GE

In order to commence an investigation, Ofgem must have reasonable grounds for suspecting that there has been a breach of the relevant legislation. To enable Ofgem to make this assessment, complaints should be specific, well reasoned and clear and supported by evidence. As a minimum, the complaint should include:

  • an indication of the behaviour complained of,
  • details of the company or individual complained of,
  • a description of your own business or interest,
  • a description of the harm being caused, and
  • an indication of the action sought.

If you are complaining about anti-competitive behaviour, complaints should, where possible, include a description of, and any evidence relating to, the relevant market in which the alleged infringement took place and a description of the relevant product/service. For further information, please refer to the OFT guidance on the submission of complaints (see Further Reading).

If you are a consumer and you wish to complain about your energy company take a look at the Ofgem Consumer Affairs page.

If you wish to complain about Ofgem take a look at the Ofgem How to Complain page.