We are having exactly the same experience as other reviewers on this site. We kept Good Energy as our supplier when we moved in but when we changed the account into my daughter's name (nothing else changed just the person who pays the bill) I suddenly received a bill for £900 in addition to the money I had paid every month. I initially set up a payment plan each month but after three months my daughter was told she only needed to pay £18 a month for both gas and electricity. This didn't make any sense given that I had been paying £164 a month previously and was supposedly in debt by £900! At the same time as all this my debt was increased to almost £2,000! So, naturally, I stopped the direct debit and complained. They still haven't resolved the complaint and more and more discrepancies are coming to light as time goes on. There are missing meter readings taken by meter readers but not entered into the system and we are being blamed for not taking enough readings. Most recently they said that we were in credit by £1,200 but two months later they have changed their minds again and now say my daughter owes £600 - presumably in addition to whatever they have decided I owe this week. They installed a check meter at my insistence that it wasn't possible for us to be using the amount of electricity they claim we are (we aren't growing weed or running a bunch a saunas/hot tubs) but they couldn't manage to fit that when they said they were going to and now they can't get it taken out when they said they would and come up with all manner of ridiculous excuses (like the engineer was outside your house when he realised he didn't have a part so he left - or he isn't licensed to work in your area so we'll have to reschedule). All this time preventing us from switching supplier because they claim we owe them money. Do not use this company!