Faulty device and poor after service

I obtained my Samsung Galaxy S6 in May this year. I noticed that the camera took very long to focus and sometimes did not focus at all. I went to to the Samsung store in cresta and the technician there said that it was due to faulty software and that I needed to take it to Clear water to be reloaded. After doing this it still did not work. I recently took my phone to the Rosebank Samsung and the technician informed me that it was a faulty camera but if I went to the head office on William Nicole-Lee they could replace the camera in an hour. So I went there and they informed me that I had to leave my phone with them for 7-9 working days without a temp phone to use due to the fact that they had to order in the parts because they do not have the parts for the S6 and only the S4 parts are kept on hand. <br> <br> Now im stuck with a phone that has no camera from the day I received it and Samsung refuse to replace their faulty device unless it has been repairs at least 3 times without success, which means I will not have a phone for weeks and no complimentary cellphone for the inconvenience.