To ask the Chancellor of the Exchequer what the average cost to a customer was of (a) a call to the Tax Credits Helpline, (b) a call to the Child Benefit Helpline and (c) a personal visit to an HM Revenue and Customs inquiry centre in the latest period for which figures are available. (308193)

The information is not available. Calls are charged to the customer based on the tariff arrangements they have with their service provider, the device they use to call and the location from which they call. The cost to the customer of visiting an enquiry centre is dependent on several factors including their personal travel costs, which the Department does not have access to.