I bought Pure Leather Sofas and they has been damaged 3-4times

I will like to request Hello Peter to intervin in my metter between Me and Home Design furniture. I bought leather sofas that cost R73, 539,00 and I paid Deposit of R20, 000 and I got my delivery goods in time within 3 months I had first complain about the sofas peeling of the leather and the management were surprised that that leather cannot peel off they exchanged it them for later when I opened them I discovered that they were the same sofas but they were just painted over and I saw the drops of paint and I complain they changed them they gave the new one's within 4 months the leather were peeling off I went to complain and they asked me to go to the wear house to choose other sets of sofas and the were no sofas that I liked there and they said they are going to give me the very same sofas I bought( Michael Angelo) I ask the owner of the warehouse that this one won't give me a problem and he said YES they won't as I'm speaking right now they have peeled off I decided to stop making the payments. PLEASE HELP ME OUT I DON'T WANT THOSE SOFAS ANYMORE I WANT TO CANCEL THE CONTRACT AND I WANT MY MONEY BACK.