This is what i don't understand how they never give you a bill but yet once you've left they'll give a bill, basically you have all legs to stand on because if you say that you never had a bill and that you have always been paying because surely they would cut you off if you weren't you say that npower couldn't care less well if thats the case you do the same just don't care because they can't cut you off because your with a different supplier. If you do have the any worries then ring try this when you ring them up if they seem like there not bothered say im going to speak to ofgem about it then if they jump out there seat apoligsing then ring ofgem up but as far i can see you don't owe anything

I agree - they are incompitent of doing anything right at all. They don't seem to care about their customers they do have, they are more interested in getting more numbers. Changing to NPower will just cause you months of stress! DON'T DO IT!!!!!!

I have only just managed to switch from NPower, it has taken me a year and they have been absolutely shocking. Basically, all my requests to switch were rejected, for no good reason at all, when I called to ask what was happening, they said they had never received any requests, which was a lie I have now discovered. It has therefore taken me a year and 5 requests to manage to get away from them, I never received a bill in all this time and now I have finally received one, I have a week to pay £150. I should never have received this bill as I was switching back to BG and the Price Protection 2010 plan which if I had been I would actually be £50 in credit rather than £150 in debit. I've written and called npower about this, they couldn't care less. I have had problems with a lot of internet/gas/electricity/phone/etc... providers, but this is by FAR the WORSE I have ever seen. Don't do it to yourself, avoid them like the plague....