In addition to the above, (because I can't edit the post)... I was just looking at my previous three bills. The average daily use shown on each bill is 44.78MJ, 41.39MJ and 32.50MJ. The current bill is 72.36MJ a day.So for the previous three months the average daily usage was 39.55MJ. Yet the current bill is heading towards double that figure. That's a substantial jump even if there was more things using gas on a daily basis