Disgusted at the professionalism at Vodacom

After many instances (bad) experiences with Vodacom since January 2015, for the purpose of ugrading. I visited yet another Vodacom store in Cavendish , Friday 6 March 215 and asked the consultants if the device that I have been querying is available.They advised that they do have it in stock. When I arrived at the store before continuing I asked the consultant if this is the correct one , and he advised that they have not received the specific device I wanted in months but the device his processing is the proper one for me. I confidently took his word for it and re-assured me that this is the product I was looking for and the device is top of the range.To my astonishment , ofcourse the consultant sold me a ****py device, please bear in mind I have a Iphone 5c as my cellphone, why would I upgrade to a Samsung Galaxy Tab 10.1 whose features are not even remotely close to mine.I visited the store following Monday requesting an excahnge and they advised that they would request approval from headoffice.They kept the device , and I am no longer in possesion of it. I HAD TO ONCE AGAIN FOLLOW-UP FOR A RESPONSE AND I HAVE BEEN INFORMED THAT THEY WILL NOT TAKE THE DEVICE BACK period!