I thank the hon. Gentleman for raising that issue. There are 4.1 million people across the country on prepayment meters, and the Ofgem energy price cap covers all prepayment meter customers and ensures that they pay a fair price for their energy. Licence conditions require energy suppliers to provide extra support for those customers because, as the hon. Gentleman said, we recognise how vulnerable they are. We will continue to monitor the situation over the months ahead, because we are aware of the extreme vulnerabilities of that group.