Billed for phone that I have not received!!

I was due to upgrade my cell phone contract in March 2015. When I spoke to an agent we arranged everything. They were meant to come deliver the phone within 7 to 14 working days. To date i have not received the phone instead I am receiving sms's from MTN confirming the upgrade and I am now being billed for the new handset which I never received.<br> <br> It is now 5 months later and still nothing. Every time I call the call centre I am being transferred and referred from pillar to post. I sent an email to the customer care email address on the 25th of March and have never gotten a reply. I have called on numerous occasions and still nothing. Now my line has been suspended as I refused to pay the premium for something I never received. I since have received an sms from MTN threatening to take up legal action against me. But when I call no one can assist. I went to the MTN store in Woodmead and the lady said they could not assist me as they have no proof that I did not receive the phone.<br> <br> I NEED URGENT FEEDBACK FROM MTN REGARDING THIS MATTER. I HAVE A VERY GOOD CREDIT RATING AND I WILL LAY A COMPLAINT AGAINST MTN WITH THE CREDIT OMBUDSMAN IF THIS IS NOT RESOLVED!!