The precedent has been set many moons ago.
Avdata took a non payer to court...his bills, like those of other users contained all sorts of errors..ie the total amount was incorrect.
The judgement was ..that Avdata must make sure that the Invoice you get is TRUE and CORRECT in all respects.
If they cant do that you dont have to pay, until it is.
And it is not up to you to continually point out their errors..that is their problem to address. And ifthey cant be bothered to do that...then...?
I tried to find out from the local council...always crying poor...how much take Avdata got from the ldg fee, and how much the council got for the airport benefit.
"commercial in confidence" says they.