They have twice now applied a missed payment notice on my credit file during bill disputes, despite both times telling me that a new bill would be sent to me or that they would put the bill payment on hold whilst errors on their end were sorted out. My credit rating has now dropped massively as a result through no fault of my own. Appalling practices and should be avoided at all costs. There have been so many instances of them telling me one thing and either it being a) completely untrue or b) proceeding to do the exact opposite. They even managed to create two accounts for me, proceed to tell me that they would transfer the credit from my old account to the new account, proceed to not do that, proceed to remove the credit from that account, proceed to give me no refund, proceed to tell me they actually can't move credit between accounts, proceed to bill me for bills from over 12 months ago MONTHS after sending me a final bill. This all happened AFTER I'd already switched to a different supplier! The most incompetent energy company I have ever dealt with and it's not even close. DO. NOT. USE. BRITISH. GAS.