Tryed to get a gas meter changed, spoke with someone who said they could not book it so would send me a letter with a date (Which never got sent after I chased) managed to book an appointment with someone that did not seem to know what they were doing, so I called back the next day to confirm the date (Which had suddenly changed date). Now that I had no confidence, I have called back an additional 3 occasions to check the status, first call the appointment date changed date, second hung up on me, third told me it had been cancelled, luckily my last call was the day before the appointment so at least I did not waste a day off work. Booked the change with the national grid instead. I would strongly recommend not using them, especially if you need to contact them. I don't normally complain, but I have purposefully created an account on here just to let people know how bad they really are.