If you live in Durban and applied for a prepaid meter in past couple years you will find that you could still be waiting for the costing never mind the installation of your prepaid meter. Well you in for a long wait especially if it is a change from a std to a prepaid.
It seems that they just dont notify you of any delays, they just dont do anything. If you phone them after like a year to find out what is going on they they will tell you they dont have stock..,mmm. I believe they have realized that if people dont pay rates etc they cant switch off your electricity and they are not allowed to switch off your water so they are pretty screwed.
So if you have applied for a new prepaid you could get lucky, but if you apply for a change over, you are in for a looooooooong wait.