City of Johannesburg water useless

My property was sold in January 2019 and i have submitted my documents multiple times at the municipal office as well as emailed the various email addresses in order to have the water and rates changes from my name to the new owners, not a single response was received and when reverting back to the municipal office i was advised to wait 6 weeks for change to take place, it has now been 5 months and still nothing has been done. Water account number : ********** 64 that needs to be removed and i have to be back dated and refunded from January.