I used British Gas in the past and they never got my bill right, in fact they got it so wrong when I went to leave due to high monthly payments they managed to suddenly bill me for £400.. I paid nonetheless and moved to Peoples Energy, great company but unfortunately soon after they went bust and I was absorbed back into the clusterfuck that is British Gas. Now according to their app they owe me £600 so I am desperately looking forward to them telling me that's all a big mistake and I in fact owe them money again. 40-50 minute wait time on the phone and on live chat, useless twats.