Natis Inefficient

On visiting the Roodepoort licensing department to renew my drivers licence, I was promptly told to book online. Even though I tried to explain that I've been trying to book on line at Roodepoort and neighbouring centres, there are ZERO slots available. I've been checking at least 4 times a day, but to no avail. My common sense tells me that booking on line is the same as standing in a queue, ie. As bookings in front of the online queue have been attended to, new openings or slots become available. BUT DEFINATELY NOT WITH THIS SYSTEM. I've been checking every hour from 6am. Secondly, why do we have to pay for our temporary licence. If licences are booked well in advance, and the department is *********** in delivering the licence in time, why should we be penalized for their incompetence. Please help someone. By the way my licence expires on 8 March 2020