Many npower customers will have noticed a serious deterioration in service levels over the last year.
The huge growth in complaints about npower is wholly unacceptable and is an issue that Ofgem takes very seriously and is why we intervened in this case.
npower's commitment that its customers will not lose out financially as a direct result of the company's billing system problems is important and we will expect npower to do all it can to identify and rectify such cases.
More top news
Slovakia and the Czech Republic call for a collective rejection with Hungary and Poland to accept a mandatory quota of refugees.
A 25-year-old man has been arrested for urinating on the Cenotaph in Whitehall and pulling down commemorative wreaths.
A Bank Holiday washout has left many Britons running for cover, with a fortnight's worth of rain expected on Monday.