Last week Prime Minister Theresa May all but admitted that the free market has failed the majority of Britons and has vowed to fix the system so that it gives them a fair deal.
This follows standard tariff increases from Npower, EDF Energy, SSE, Scottish Power and E.ON.
Competition usually results in lower prices and for the 15.8 per cent of customers that regularly switch suppliers, it has.
However, the vast majority are still stuck on…
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