In March, 1999 a man living in Kandos (near Mudgee in NSW) received a bill for his as yet unused gas line stating that he owed $0.00. He ignored it and threw it away.

In April he received another bill and threw that one away too. The following month the gas company sent him a very nasty note stating they were going to cancel his gas line if he didn't send them $0.00 by return mail. He called them, talked to them, and they said it was a computer error and they would take care of it.