City of Cape Town - Failure to correct incorrect water account

On 17 November 2017 I have reported to the City of Cape Town that the water reading on account number ( ********** 32) is incorrect. After many e-mails I received confirmation on 27 June 2018 that this is indeed incorrect (Meter reading 17kl on 27/06/2016 - estimated reading on 4 December 2017 when I stopped paying the account 790kl). Nearly 3 months later and no adjustment has been made. At this stage we have paid for water that has not been used. ITC has now sent a letter that we will be handed over for non payment.