Excessive payments

On 01 July 2015, I called to check the amount due for the month ending June 2015 and only to find out that we owe R8519.25. When I asked the reason I was told that the amount includes billing from June 2014 to June 2015 and the breakdown is as follows: Refuse - R2689.00, Property Rates - R6710.00 and Electricity 16510.98. <br> <br> This came as shock as I know that we have been consistently paying our account and we pay according to the statements that we receive. The consultant confirmed that we have been paying our account consistently but the City has been billing us incorrectly and less than what was supposed to be billed to us. My husband has been on several occasions to the Midrand Offices and only received pathetic service from the customer service consultants. Its either the system is down or the person assisting does not know what needs to be done. <br> <br> Just to provide our payment history from June 2014 - June 2015:<br> 05 June 2014 - R2064.36<br> 07 July 2014 - R1730.65<br> 01 August 2014 - R1749.56<br> 28 October 2014 - R1485.35<br> 29 November 2014 - R1406.70<br> 26 February 2015 - R13010.00<br> 26 March 2015 - R1573.45<br> 28 April 2015 - R1446.37<br> 29 May 2015 - R2330.74<br> <br> Please help urgently