ah, but Dub, this should be in an ASX-By Stock forum.
In '99 there was only one gas network supplier in NSW, AGL Energy.
And if you think that the $360 million project Phoenix SAP installation will have fixed these problems, well, the humor forum is here to to give us a laugh.
:)
Although AGL Energy no longer owns the pipelines, it still runs those billing methodologies.
Some billing engines have a gate in them that prevents dispatch of a bill where cost of printing and posting is greater than the invoice amount.