Ped, I live in a nice flat in a quiet, private, area and have great landlords, so I do not really want to move over a gas meter.
The meter is owned by National Grid, not SP - they are only the gas supplier. I have the freedom to choose whichever supplier I desire and my intention is to swap once I have received some feedback from SP. I have already been given some great advice from one of the numbers provided by Mrs Aggers.