Out of box failure within 8 days.Replace unit. NOT

I signed a new contract on 15 September 2015, got a Samsung J5 with the contract. I was told when signing that should there be a fault with the phone, it would be replaced immediately with a new unit. On the 19 September 2015 I returned the phone as the 'Screen Rotate' function isn't working. This was confirmed by the shop personnel, but I was told the phone would have to go to the repair centre for an evaluation which would only take 4 days. I asked if they had a loan unit for me and was told no, that is not their policy. On the 25 September 2015 I tried to phone the store to find out what the status was. The phoned wasn't answered after trying SIX times to contact the store.<br> I had to go into the store to be told that the manager would have to speak to the people at the repair centre and he would get back to me. Needless to say he never got back to me, so I phoned again, finally the phone was answered. I was told that I might get my phone late Monday or maybe Tuesday.<br> How terrible is that service? it could take 10 to 11 days for me to get my Brand New phone back. They just don't seem to care and blame everything on Vodacom.