Without a shadow of a doubt the worst company I have ever dealt with. They have caused nothing but problems for me eventually ending up affecting my credit score. I moved into my property in 2020, the smart meter for the gas wasn’t working so they replaced with a conventional meter. The engineer didn’t register the new meter or the starting reading. The starting reading on the new meter was 48000 units. Rather than anyone having a modicum of common sense or even the system flagging up that this could be a mistake. they tried to charge me £28,000 for gas. For a 3 bedroom house with 2 occupants. Countless phone calls, countless logged complaints with absolutely no solution. I was losing sleep with how much stress this was causing me. It took me 1 year and 3 months to eventually get them to register the new meter ok their system. Even after then I have had nothing but problems. I then paid off my bill and tried to switch to another company, which British Gas then declined the switch due to “outstanding balance” and then logged my account was in arrears and has missed payments. Which has affected my credit score. I absolutely hate this company with all my being. How can such a big company like British Gas get it so wrong. I honestly don’t know what to do because when you call their customer service, nothing happens. You speak to someone and nothing is noted down, added to their system or passed onto the relevant people for resolution. Please, please, PLEASE! If you are thinking of switching the British Gas, turn around and walk away because they will cause nothing but heartache.