Terrible management (From the building manager to customer services, utilities and Credit Control)

The Falls Lifestyle Estate..

I had an problem with my toilet overflowing and I reported for maintenance and it took them over a month to fix the issue, I was billed more for water and raised my frustration with the building manager ( that's when they decided to assist). A few days post fixing the toilet, the security and some utilities guy came and asked that I open my cold water (I think they checked something on the meter)..

Then a week later I received a call from their office saying I owe 10,800k for water and I asked how is that possible for a 1 bedroom apartment with a single occupant. They advised they are investigating the matter, hence the call. The outcome of the 'said' investigation was not communicated with me and for my June statement that 10+k was included in my rental statement. I had numerous calls with customer service and the building manager regarding this and all the said was I report the 'leak late'. I refused to pay such a ridiculous amount of money on just water without a proper investigation and they switched of my electricity... They even sent a letter of demand sent credit control to come up with a payment plan.

I sent an email asking them to break down how they calculated the cost to amount to 10+k and they haven't responded