Water connection and amp change - non existant service so far

App**** for water connection 3 weeks ago and I have still not been connected. I have tried phoning Vinesh on ********** 358 and this line is never answered. I have tried sending emails to Nonhlanhla Ndlovu and tried phoning the call centre as well but had no joy. I've also recently connected to a prepaid meter and have been told that there is a 20amp fitted and I need to change to a 60 amp - impossible to get this change done - have requested it but 2 weeks have passed and nothing has happened. Does anyone know who the correct person is to assist me in getting this sorted out.