Vodacom 4U Northgate

I went into the Vodacom 4U outlet at Northgate to pay my phone account on Friday 5 April. I was told i am due for an upgrade. I asked to be upgraded, but they did not have product in stock. They said they would order it and phone me to collect on Tuesday 9 April. No phone call from them. I went to see them on Friday 12 April and was told the manager did not order the product but will do so on monday 15 April and i will be phoned on 16th to come collect it. Again no phone call. I went in on 23 April and was told the manager again did not order it. She made a call in my presence to check when her stock is arriving and was then informed my product is included in the delivery on 24th. On 24th i get a phone call informing me the manager did not order the product (again). They are useless and should not operate a vodacom franchise. The lady i was dealing with blames the manager, the manager refuses to see me. I do not recommend anyone supporting the vodacom 4U shop in Northgate Shopping Mall