£200 warning issued to British Gas, Ovo, Octopus, EDF, Bulb and Shell energy customers
Experts have issued the guidance as the Ofgem energy price cap is hiked from January 1, with bills set to cost households over £1,800.
Experts have issued the guidance as the Ofgem energy price cap is hiked from January 1, with bills set to cost households over £1,800.