Charging twice for the same period When my daughter moved out of my rental property in Sept 2022 I contacted British Gas, the supplier, to let them know I would be paying the bills from now on until I'd sold the property. The bills kept arriving monthly to The Occupier, I paid them. The last one being December 2022. In February 2023 I contacted British Gas to let them know I'd sold the property and please could they send me a final bill. So they closed The Occupiers account, opened a new account- backdated it to September 2022! I queried this several time as I didn't see why or how British gas could charge again for a portion of energy that had already been paid for? Eventually I spoke with a lady for nearly an hour, who in the end, promised me I had nothing to pay and that the account was now closed. A few days/weeks later I received an email and letter from a debt collection agency for the full amount- backdated to September 2022 and no government subsidy deducted. I have requested a Deadlock letter at least 6 times as I would pay the bill then take it up with Ofgem So far they have completely ignored my request for the Deadlock letter - so I cannot move forward with Ofgem! Apparently they are sorting out my invoices now... but I imagine in the meantime I'll end up with a bad credit rating due to their ineptitude. Date of experience: 22 March 2023