Penalized because I have a property

I am charged at the highest rate possible when looking at the tariffs given by Eskom. I am paying R100 for only 56.90 kWh?I have contacted the municipality: reference number *** regarding the drastic increase with my electricity usage. Reference number *** they confirmed that my average usage for the last 20 months was 338.2 units and with a big bang it increased to 621.3 in August 2015, a hefty difference of 283.1 units. Today 1/9/2015, I queried again reference number *** only to be told that I must pay R627.00 or R851.00 to have my meter tested. This is a fairly new meter No ***. We are 2 adults, 2 kids, away from the house during the day, cook once a week. My geyser is switched off most of the time and goes on at certain times. I am sure that my meter will show that I have use average 338.2 each month. Why do I have to pay R200 for only 56.90 kWh? I am being penalized because I own a property to the value of more R250000.00. This does not mean that I am rich, being a single divorced mother, I am also struggling like any other human being to make ends meet. I fail to understand that I am being penalized, only because I have a property<br>