After moving into a property and providing my meter readings, I was being billed for a period before I even owned the property because the billing team messed up the dates and readings. After receiving a letter from a debt collector which I had to pay as it was addressed to the occupier, this was in addition to me having an open account and being up to date with my direct debit I put in a complaint and after 20 phone calls and 18 days I got a case handler that called me back telling me it was my fault that I shouldn't have paid the debt collection letter (I have to so it doesn't escalate) then told me they wouldn't be a review on the account for another 12 days and I said this wasn't good enough I wanted someone senior to call me so she hung up on me. I have spent hours of my time, 20 phone calls and paid £100 to a debt collector for absolutely no reason for a period that relates to before I owned the property and British Gas don't care, don't have the resources to deal with this and I will have to go to the Ombudsman. Utter incompetence, there are bad companies out there and there are poor customer service experience and then there is British Gas. I would strongly urge anybody considering changing to British Gas to think again because there will be no backup in the event of any billing errors. Also the South African call centres are sarcastic and speak over you with little understanding or any interest of any concerns you have. If this experience has happened to somebody old with any anxiety then this would fundamentally affect their life. I have dealt with many properties and many companies and this is by far the worst company anyone will have the misfortune of having to deal with