Cityq

I bought the 31st of July 2020, r900 of electricity and only got 303 units, not even a week after that another r100 and got 33 units, which makes it 333 units for r1000, we are by the 15th of the month and my units are almost finished, i use a gas stove, geysers only on for 2 hours a day, no heaters, no tumble driers, no electric blankets, how can it goes so quickly, my previous house i moved out at end July we use to buy r900 of electricity got about 480 units and that lasted me a whole month, i dont understand where my units are disappearing to, called the callcentre they told me to get a electrician out to check the box(that will cost me more money), its a daily ripoff, where must I get r2000 for electricity a month