Posting for traffic, sorry!
I bought my house in 2019, it was a new house built on existing foundations/part of the old house. I hadn’t received a water bill so contacted the water company who came to look and it turned out the water connections with my house and some nearby flats were all a mess.
The flats have had their connections properly done and are being billed correctly. The water company came today to sort mine out but it transpires they can’t work out where my supply is coming from. They suspect a neighbour but don’t know which. This is termed an illegal water supply. Their solution is to bill me a fixed rate and walk away from the problem.
Obviously, if I come to sell the house, I don’t want searches to reveal an illegal connection! Has anyone been through this? How much of a problem could it be?? I am freaking out a bit ☹️