MY Current invoice is R3000.00

<br> I SENT IMPACT METERS THE FOLLOWING EMAIL ON 15 JUNE ,I need to query my accounts, can you please tell me what is the procedure to do so,I opened my account in January 2015, from the 1st month I have been paying different amounts ,<br> Every month I pay R100 or more extra, the difference from January and June is more than R500 , I do not understand why because the tariffs don't go up every month,<br> I haven't changed my lifestyle, during the day there is no 1 at home, the only thing that is constantly consuming electricity it's a Fridge and a Geyser which has been there since January,I only cook 4 times a week, we do not have any heating system ,I want to know what makes my bill to be so inconsistent and so high ? the account was just over R1000.00, after complaining my account was R700.00,AND THE FOLLOWING MONTH WAS R800.00, CAN YOU BELIEVE HOW MUCH IS MY CURRENT INVOICE?? R3000.00, I CALLED THEM ON MONDAY THE 28 SEPTEMBER,THE CONSULTANT did not have answeres, she advised me to send an email, NOBODY answered my email, i called them again today, PRETORIA CBD BRANCH, They told me to call Silverlakes branch, which i did, i spoke to Dean, he told to pay R400 for them to read my meter