Damning official figures reveal that as many as 3.5 million smart meters are currently operating in 'dumb' mode.

But for the more than four million people on prepayment meters, this seasonal change comes with a financial catch—one that could leave them unexpectedly out of pocket when they next switch the ...

Ministers have been urged to review the practice of forcibly installing energy prepayment meters in homes as the energy crisis has left some vulnerable customers without heat or electricity ...