Bad customer service

I bought brand new leather lounge suite at Rochester in Cornubia in 2019.05.11, it was delivered in 2019.05.19. I paid R45000 cash. The invoice number is ***. Within six months the three seater had a problem. I took it back to the store for repairs. when it came back it was abnormal. And on top of that the fault I complained about was still not fixed. I then decided to inspect the other couches. I realised the two seater also had the same problem. The sofas have been repaired twice. I then took the two sofas to the shop and asked them for the new set or a refund. They keep on say they are awaiting approval from their supplier Alpine. It been more than a year without a lounge, waiting. I am sitting on plastic chairs for the whole year.

When I called few weeks back I was referred to Alpine. To my surprise I was told my query has been closed. How can I be told to speak to the supplier. I feel very helpless right now.