Over seven million customers will be hit with gas and electricity price hikes from 15 November, after Scottish & Southern Energy (SSE) became the first of the big six energy firms to announce a price rise.
Britain's big six energy companies will face fines unless they open up the electricity market to competition from independent rivals, under proposals by Ofgem.
Any customer who signed up to a Scottish and Southern Energy (SSE) contract on their doorstep, by phone or at a shopping centre could have a mis-selling claim against the company, according to Trading Standards.
Npower has today become the latest provider to only offer tariffs charging a single rate, but customers who use very little energy could end up paying more.
Millions of energy customers will be hit with a price hike today, as Eon becomes the last of the big six firms to wallop its customers with a jump in their bills.
Energy deals promising savings and free energy often leave consumers out of pocket, despite what their ads claim, an investigation by consumer group Which? has found.