MTN - poor service providers.

I have been trying to upgrade for the past week, I’ve called different malls none of which have stock, they told me to get my upgrade done over the phone which I did - the agent I spoke to told me that my upgrade was successfully done and that I’ll receive my phone in a week, I called to request the status on when my phone will arrive, they sent me around from pillar to post I spent almost 2 hours on the phone being transferred from 1 agent to the other and none of them could successfully help me! I am still without a phone! I NEED MTN TO ASSIST ME PROPERLY!