Failure to provide Iphone

I renewed my contract with MTN on 6th November and I received the upgrade phone in super-fast time, however it was the wrong phone. I reported this immediately, it then took a week and half for RTT to collect the phone and all the necessary documentation. it is now a month later and still no one can tell me where the correct phone is and when I will be receiving it. I have escalated it with the call center but to no avail.<br> <br> This really not acceptable service when the original mistake is MTN's, not mine. It seems to me that when there is commission to be earned the sales people get the paper work moving and that is where it ends, I have a new contract but I don't have the hardware.<br> <br>