Energy bills: 'My £5,700 charge was cancelled because supplier broke rules'

BBCHayley Jarvis got a text out of the blue saying she owed her energy supplier £5,768 for her old homeHayley Jarvis was shocked when she received a £5,768.09 bill in early January for energy from two and a half years ago."It was a vast amount of money that would have taken me an incredibly long time to pay back."It is a practice known as "back billing", but sending a bill for energy that was used more than 12…