Excessive water charges due to faulty municipality equipment!!!!

For the past 2 years we have queried the excessive water bill at the Milnerton municipality which ran up to R4500.00 on average per month. Their response at the municipality was that "we must just pay" How can a normal family consume R4500.00pm of water per month? Eventually we instructed the municipality to take out the meter, which we had to pay for, which is their property???? That was 3months ago, so now the water bill ranges from R750 - R1200 pm, which is more acceptable. THE EMPLOYEE WHICH TOOK OUT THE WATER READING CONFIRMED THAT THE WATER METER IS FAULTY. They pass us a credit of R11 194.78 for a bill that ran up to R145000.00 for the pass 2 years. The municipality is a *******. Why do I have to pay more or less in excess of R3000.00 pm for water which is the result of faulty equipment from the municipality???? Please reverse this charges, because I am not paying this bill PERIOD!!!! Account number ********** 02.