Green Star Energy has been wrongly telling some customers nearing the end of their fix they'll have to pay exit fees of £30 per fuel to switch, MoneySavingExpert can reveal.
Small gas and electricity supplier Iresa has been banned from taking on new customers, increasing direct debits and asking for one-off payments until it resolves customer service issues.
Energy regulator Ofgem is to trial a collective deal for 50,000 customers who haven't switched for more than three years - but you needn't wait to save.
Up to five million vulnerable and prepay energy customers could see their bills rise by an average £58 a year after the regulator Ofgem announced it is to increase its price cap.
About one million energy customers who are deemed to be vulnerable and so are given a discount on their gas and electricity should see their bills drop by an average of £102 a year, as the regulator extends a price cap. But many could actually save more by switching.
The energy regulator is to investigate whether Ovo Energy gave some of its customers inaccurate information relating to how much gas and electricity they'd used.