No delivery and no response to emails or phonecall

I upgraded my contract online via phonefinder on 26 May 2015 (ref UV509145 from a lady called Mtediseng who works for Expresstelekom). This contract was confirmed by sms from MTN but I have not received my new phone and numerous emails to MTN customer care result in automatic responses with reference numbers but with no follow up. No response from 808 or from *** which was all the help that the MTN Centre in Claremont could give me. No response from Canal Walk phone. I am being billed for my new contract but MTN has not comp**** with the agreement. How do I get a human being to respond to me?