How dare they? Energy companies profit from your money

Have you ever wondered if you could get millions of people to lend you £100 for nowt. Then you'd put it in a building society account and collect the interest? Million in interest.

Well I suppose this is what the energy companies do.

You pay £x a month your bill but when you're in credit and there must be millions in their bank accounts surely they can sit on it an collect millions in interest?

DO we get any "credit" for it - no.

All they do is put their prices up by 10% plus! No one else would get away with it but what can you do, you've got to have electricity and gas? Well you could switch, try Quidco.