I tried to switch today and was asked for what the current supplier had the gas meter registered as, something about a plot number rather than a house number. He said he just had a list of numbers but needed to confirm which was mine. I was told to look on my bill but couldn't see anything. Later I noticed these MPAN and MPRN numbers. Can anyone tell me if one of those is it before I phone back next week?
Also, it is a bad idea to fix right now right? I wanted the variable but he was trying to get me to fix. I'm switching because I'm on a green variable tariff that is exempt from the cap.