I recently switched from Origin to AGL, and jut got my first gas bill. However, the meter reading for gas hot water meter was estimated only. In fact my last 4.or 5 bills from Origin were also estimated readings. Could I ask why? I am living in an apartment building with an on-site strata manager. If your staff can not access the meter, you can call our building manager. I am afraid that the estimated readings have been underestimated for more than one year.