Protea Metering are ******!!

I've been using Protea metering for the past 4 years and have never paid the surprised amount i got for December unless i was paying for 2 months. I've had a helper in my house until 2018 November when she moved out. 30th November 2018 i took my kids to my mom's house, i was alone by the house where my partner would visit occasionally. I then when to my mom's house too on the 21st December, we came back on the 6th January 2019. But what surprised me is when i got a bill statement for December saying i owe R1226.54 for period 2018-12-10 to 201901-17. I emailed the consultant, she kept quite and did not reply. The following day i called and then they told me i should email the consultant and it will take 3-4 days investigations. I then gave it that time, i called again, spoke to her and she said she will send their people to come and check the readings and since then no one came. And I called again and they said she just walked in and she will give me a call back in the next 30 minutes but still noting to date. What i wanted to know was how did they get to that amount as i have never paid that kind of money before even when i had a lot of people in my house. This time i was alone, where in the mornings i would go to work and come back at 5pm. I still haven't paid this amount and still will not pay it until they come to a normal and understandable amount. Now they have blocked me from buying electricity because i owe them. This is not a way to treat your clients.