Hi, I have photographed my NET meter display for the export power and imported power at the begining and end of thhe billing period. I subtracted the lowest reading for each element (Import & export) from the highest reading. My figuring, this should give me the Total of all the Imported and Exported power for the billing period. My account from AGL indicates that i have been billed for 100s of KW more Imported power than i have calculated mathematically as detailed above? My account indicates i ...