I've gone over those packages time and again to break them down into their constituents, and I've never once seen a package that was actually good value for money over buying the phone as a prepaid and then getting the equivalent package's items as prepaid.
R11976 over two years vs ~R6k for the phone right now and ~R6k to spend on whatever you need to get per month.
Then you seriously need to brush up on your math... Phones on contract are always heavily discounted.