I checked our meter yesterday and did an online meter read. It came up with $621 with 35 days to go. Our highest ever bill has been about $450. I turn alot of power points off until we need to use them. We use our airconditioner correctly with setting it a the required temperature. We were out today and when I checked our meter 24 hours from reading it yesterday it jumped up 20kws. How can it do that? Our meter would have to be faulty. We will not be paying a possibly $900 bill.