Repair department pathetic

We bough a Samsung Home Theater System 14 December 2013 and returned it 02 January 2014. The DVD player didn't always open and it didn't play the dvd properly. More than 6 weeks later we received the machine back. The machine started having the same problem. March this year I phoned Makro Wonderboom and spoke to Prince (the manager). He told me he will find out from the supplier what needs to be done because we had a problem with the machine from the beginning. After numerous calls to Prince (he never phones back) we took the machine back to Makro. We collected the machine 10 July. When we got home we noticed the cover where the dvd goes in was missing. Palesa from Makro came to collect the machine Tuesday 14 July and informed me the machine will be sent to the supplier immediately. Friday 17 July I phoned to enquire and Palesa told me that they are expecting it back the afternoon. We received a sms Saturday that the machine was received by the supplier. I phoned Makro Customer Service and was informed that Prince told them the machine will be back Monday 20 July. We are still waiting. The staff at repairs lie and they don't contact customers.