Vodacom policies

So I recently bought a contract from the Vodacom online store.<br> <br> The contract consists of an iPhone 6 16gb mobile phone and it is only 21 days old. The phone is not working anymore and they refuse to replace this brand new faulty phone because i never reported a malfunction within 14 days! I find this completely unfair seeing as I am paying for this phone and expect to have a good and working phone. I do not want the phone repaired because what if it happens again at a later stage.<br> <br> Vodacom is being ridiculous with their terms and at the moment I am the most dissatisfied customer