Vodacom Bayside - nobody feeds back

I took my phone into the Vodacom shop in Bayside on the 13th January to be repaired, as it did not want to switch on. I was contacted a while after to be advised of the quote amount to have it fixed. We went into the shop to collect the phone and decline the quote, as it was still under warranty - and we should not have been charged to fix the phone. A staff member in the shop confirmed that we should not have been quoted anything, but wanted to double check with his manager first. Since then, we have dealt with approx. 4/5 different staff members - each time US having to call them to find out what is going on. And each time being told that somebody would call us back. Each time we were also told that the manager, Steven/Stephan, would contact us. On our last visit to the store, the shop assistant called the manager on his cellphone at home - as he had already left. Only to be told again that the manager would call us back. It is now over a month later and I still have not had ONE phonecall from anybody at Vodacom to say that my phone is fixed at no charge. This is getting beyond ridiculous.