I got a 6 monthly gas bill from AGL for $2,007. The average daily use (401.93MJ) is the exact same across the 6 months.There are four people in the house - gas stove, i presume gas hot water, and a gas heater that was turned on no more than 5 times during winter.The IPART website says average 6 month usage for my household would be 10,800, yet my bill shows our consumption was 76,768.63Does this indicate there could be a gas leak? I've contacted our real estate agent but they think it's entirely ...