Unrealistic Gas Bill Our current gas bill showed our gas usage at 10,000+ MJ yet the average 4 person household in NSW is 4000 MJ. We have a baby and a toddler, so 2 adults and 2 infants, so this is impossible. We also have barely used gas over the summer/spring period until last week (our quarter bill would normally be $150 maximum). We paid the previous bill from 8 November to 5 February but would now like a refund / credit as this was far too high for our usage – please advise how we do thi ...