Cellphone pricing month to month way off

Firstly to try to phone the bank to get clarity is damn near impossible so I reverted to hellopeter (thank you hellopeter). <br> For example the iPhone 6 Plus 64gb per month is R 655, so over the 24 month period is R 15720. On ebucks (which is also FNB) and the istore it retails for R 14299. This difference in price ridiculous, especially considering the fact that you have always touted that you offer products interest free. Of course its interest free if you over charge like this. My previous phone through you was about R20 cheaper than the market rate. I seek some clarity regarding this matter.