>> As gambiting says they;re often put in if you get behind on bills, but if you have poor credit or move into a flat that already has them I think it can be pretty damn difficult to get off them. Like some utilities make a charge or ask a deposit to get a normal meter put in again, even if that wasn't down to you in the first place.

Ah, thanks- I was wondering about that. I imagined it wouldn't be simple to take the meter off once it's on.