I've got the papers from the Town Hall. I have a copy of the last bill, which apparently the bank are supposed to send to me, but don't. Anyway, armed with the last bill and the current bill, and a read of the meter, it seems to be correct.
Seems water is not as cheap as everyone says. I've spent all of this year trying to grow plants for a living, and all plants for sale need to be in a pot, and all plants in pots need watered much more than plants in the ground, because plants in pots can't send little mini-roots out in search of water.
I have to now really think about my pricing structure for selling these plants, which are now very expensive thanks to the water they needed. Or else think about doing something else for a living.
Hmmmmm!