High electricity consumption

Hi everyone can somebody please help me, I've spent R2500 on electricity since the 1st of june to date and I normally spend R500 a month. I've reported the matter several times and I'm told "it's normal to spend that much during winter" My pattern of activities has not changed and while I understand the consumption is higher in winter I think the increase is ridiculous. I ran out of options since the service provider Protea Metering (Pty) Ltd is not willing to help. When you look at the kilowatt they give you and the graph they use nothing makes sense, I've run out of options. I have proof that protea metering is reaping its client off they award you will kilowatts however when you check on they app it's not what you've used.