Need to register proper values on a 3 phase 240V system - AC/AC issue

[Robert.Wall]

@Frogmore42

Is it good enough to use for billing, I would say not,

I think most of us would agree there, but I would remind you that at least one user in your part of the world obtained a substantial refund from his supplier, assisted at least in part by evidence from his Arduino Uno and emonLib.