Hi, thank you for replying. I have being paying £29 per month which I guess is based on her usage, not mine. Before I submitted my reading (the scary 7K one) it showed I was in credit which the have deducted from the £2000+ that shows I owe. They have requested a charter back bill as they have admitted that it is their error for reading the wrong meter.
I would have assumed neighbour has had a bill (she seems very honest). I've not yet been able to speak to her but would hope that she is paying the same as me (£29).
Suppliers have said they cannot guarantee this chartered back bill will be authorised.