Do you have to accept the meter?
A few years ago in Camberwell I invited Thames Water to install a meter. At that time I lived on my own so felt my water usage was way below the “average” from which my bills were derived. However, there were unable to install a meter in my property, something about the location of the “split” for the two units in the house.
I was then offered a 20% single person discount.
Wonder if that policy still applies?