I have received an invoice from a heating company - we are on oil heating showing we haven’t paid a bill from October 2022. They’ve never been in touch before now. We have been on oil heating for 15 years and it’s always the case you pay for your heating in advance so I am not sure what’s happened here. I don’t have £567 to pay in one go. I don’t even have the bank account we would have used at the time so I don’t think I can check what has been paid. Can I ask them to evidence that I haven’t paid or is it just a case of asking to pay in Instalments? Can’t believe they are only just asking now over 2 years late.