Im with BG 14 years never had a problem until last year October when they change to new billing system. Since then its absolute mess. They were taking money from my account and I had direct debit. I acanceled direct debit and only payed what i used every month after they issued me monthly bill. Suddenly they issued me £700 extra bill as apparently they weren't receiving my meter reading from my smart reader. I spend hour and hours on the phone asking how come I was still charged monthly and then got extra charge. Every adviser was trying their best, but clearly had no clue what to do. I strongly disagreed with extra bill and made complaint, that was in march, nobody get back to me till now. And I had to pay the money as they were threatening my with collectors. Absolutely fraudsters !!!