1 month on still no device!!

Please refer my 2 previous posts. First Farhana at the store insinuates that I must have dropped the unit for it to have a blurred screen and books it as a repair not an OBF. Then I'm given the runaround about it being sent unfixed because of paperwork issues. I've been calling vodacom and the store regularly for the past month with no proper response. Seems Farhana and Indira forgot that the customer can call and query from Vodacom directly. I'm always told by them that They're waiting for the courier and they'll call me back!!! I'm still waiting for the store to call me even though the OBF was approved earlier in the week. . I called again yesterday to be told I must go to another store with my ref number to get a device that I paid cash for on 17/12/2015. I've run up my phone bill calling both the store and Vodacom - now I must drive around the city to find a store with stock of the item!!! Give me back my money and I'll deal with someone else! This can't possibly be the kind of service vodacom gives... I'm here a month later with NO MONEY AND NO DEVICE.