4 months and still no phone!

<br> Good day,<br> <br> After receiving a defective iPhone 6s Plus when I upgraded my cellphone contract, I was told by mtn direct to take my phone into a store so they could send it off to the repair center. On the 21st October 2015 I my phone was submitted to the repair center, only on the 30th of December did they come back to me saying my new phone is ready for collection. After standing patiently in line waiting for my new phone 2hours later they tell me they are unable to issue my phone and mtn direct should have called me. I have called I have emailed I have done everything in my power to get a phone. <br> <br> It's 4 months now since my phone was booked in and I'm paying for a phone which I do not have. Until now I have boosted the mtn name and said how satisfied I am. Now I fear I might have backed a loosing horse. <br> <br> Regards <br> Stefan Bosman