City of Cpt incapable of giving Actual Water bill

For the last 3 months I have been requesting an Actual water reading from the City of Cape Town.For the last year the City has been estimating the water account. But their estimations has just been getting more and more ridiculous and my bill has been estimated more than R1500. I have been disputing these ridiculously high estimations and requested an Actual reading. Every month I go and speak to a customer service agent and they just take a few notes but never ever any action. Then the next month I get yet another estimations of thousands of rands. I don't own a pool nor do I have a garden so there is no way that I consume so much water. Even though I have requested numerous times for an actual reading things have gotten so worse that the City ha threatened me with a disconnection based on estimated accounts. I ave been asking for an actual reading of my water meter for more than 3 months. This is really the worst service ever!!! Now I understand why customers go on the rampage and protest for service delivery because that seems to be the only way to get some sort of service from the City of Cape Town.