"However, with regard to the gas being on, does that actually mean there is credit? I thought there were social restrictions on utilities, which mean they cannot cut off willy-nilly?"
I'm not sure about gas but they definitely can cut off your electricity when the credit runs out.
We're still getting used to the credit meter and were plunged into darkness at 9pm the other night when the credit went down to £0. On our meter you can get an emergency £2 by inserting an empty key, but that's basically just to tide you over till you get to the shops.
I'm not completely sure about gas but I don't think it would be different - if anything it's probably easier living without gas than without electricity?
It is an utter pain in the arse and yet another example of the way the system works against people who have little or no money. To add insult to injury, if you move into a house with a normal meter there are no securities required. If you move into a house with a credit meter and want to change it back to a normal meter, they not only charge you to change it over (£50) they also demand an upfront "security deposit" of £250!!!
I was completely shocked - this is me and DH who have a PERFECT credit score, have never left a bill unpaid in our lives. We are basically being penalised for the behaviour of the previous tenant.
Because we are middle class and shouty we rang our previous utility company and kicked up a stink until they agreed to replace the meter for free and without a security depost because we had been with them for 10+ years at our previous house without missing a single payment. However it wasn't easy and we had to speak to a lot of people before they agreed to sign it off.
The company who owned the meter refused to change it for free. It's a horrible example of the way the system shits on those who can least afford it. (Sorry, lefty rant over).