If you have a problem with your energy supply or you are unhappy with the service you have received, you have the right to complain.

Depending on what the problem is, you can complain to either your energy supplier (the company that provides your energy) or network operator (the company responsible for the pipes and wires that carry electricity and gas).

Read about the process here: https://www.ofgem.gov.uk/information-consumers/energy-advice-households/making-complaint-about-your-energy-supplier-or-network-operator