So I'm thinking of getting an iphone 5c with the smart 100 thing where you get 1GB data and 100 minutes, the 16GB is R259x24months but for R399 a month you get a iphone 5s (16GB) but on smart 50 Which is only 500mb and minutes.... Is It worth it? And will 500mb last me the month? I have a BB at the moment so I don't know how much my data and stuff is coz I have BIS, if I'm on Bbm whole day will I make it with 500mb?