Waiting for cellphone

I went into Virgin Mobile at Eastgate round about the 19th July. I wanted to take out a contract. The phone I wanted was out of stock and I was told it would be in a week later. This was not so. Another week later, nothing doing. I then chose the Samsung Grand Neo. Once again I phoned Virgin mobile Eastgate and was told delivery would be soon and someone would call me. Nothing doing. I have made numerous calls! On Friday I phoned head office who said they would escalate the delivery and let me know when. As of this afternoon I had heard nothing. I went into the store and spoke to Kabelo. He contacted head office who said delivery will be within 3 to 5 days. I asked for a return call by this evening telling me exactly when delivery will be. Yet again, NO CALL ONCE AGAIN! All I want is a cellphone! All my papers were approved. How many calls do I have to make to get a straight answer?