Complete lack of care for customer time

I went to Samsung shop after Vodacom told me I had to go there to have the screen change (because it was broken). They sent me to Vodacom for a proof of purchase. When I sent it they said it was not readable. I had to go again. When I came with the proof of purchase they took the phone and told me to come back to fetch the phone in 3 hours. When I went back to fetch the phone (it took me 30 minutes to find a parking because the Waterfront was just full ) they said that they could not repair because it was already repaired once! !!! But that they could know from beginning...... The truth is that they don't give a **** about customer's time! Worst service ever