Customer of 20 years is treated like a ********

I was due for an upgrade in about Oct 2015. In August someone from Elite mobile called. I agreed to renew my contract telephonically. My new contract included an Xperia cell phone. I received my parcel at work a few days later. I was busy when the courier arrived so I just took the box and signed for it. I took the box home with me. I put it in my study as I did not have time to open it..At the time I was nursing my husband who was injured in a car accident, looking after my small daughter and working my usual 6 -7 days/week. Two weeks later my phone started playing up so I took the box back to work and opened it when I got in. BUT THERE WAS NO PHONE IN THE BOX! I phoned customer care. They referred me to Elite Mobile. No one at either company wanted to take responsibility! Eventually I was given an email address to which I had to send an affidavit - which I did. I later looked closely at the box and it was sealed with 2 different coloured Vodacom tape???? Up until today I have not received my\lost"phone! No one is interested in sorting this out! My past few emails have been totally ignored!!. Vodacom thinks I am lying. Why would I? I need and want the phone I am paying for!"""