Question to the Department for Business, Energy and Industrial Strategy:

To ask the Secretary of State for Business, Energy and Industrial Strategy, what estimate he has made of the cost to consumers of over-billing by gas companies; and if he will make a statement.

The independent regulator, Ofgem, through conditions in the supply licence require suppliers to treat their domestic customers fairly, including providing information (whether in writing or orally) that is complete, accurate and not misleading in terms of the information provided or omitted. Domestic supply or deemed contracts must include any compensation and refund arrangements which apply if contracted quality service levels are not met, including inaccurate and delayed billing. Ofgem have taken enforcement action against suppliers where there is evidence of inaccurate billing.

In addition, the Office for Product Safety and Standards is responsible for the regulatory system that delivers accuracy in measurement of gas consumed.