Phone not delivered

I completed an upgrade with MTN online direct, which I initially thought would save me time instead of having to go into store. I thought, what a great service MTN is offering their customers. Now I have been struggling for the past month (I have been calling and emailing) to have my new phone delivered to my residential address. It was not delivered and sent back to the warehouse due to it being delivered to the wrong address. However, requesting to send it back to my address has been a very stressful processs for me... I have been redirected from consultant to consultant, lines disconnected. I request with this complaint to please get some assistance in the matter. I would like my phone to get delivered accordingly.