Faulty Fridge - rude response from supplier

In October 2014, I bought a C385 DAC512 Met. Defy Fridge for R4499.99 from Fair Price in Springs, because I am staying in Alberton , the Alberton branch delivered it to my house. few days later after we used the fridge we realised it was too freezing in so much that you would not open the shelves/drawers in deep freeze and the rubber was getting off the deep freeze, we reported the matter and in Jan the technicians ( so they say) came to look and suggested we must elevate, defroze and they re attach the rubber to the fridge, the Fridge was put on level 2 so to eliminate the freezing a week later the same thing continued and I called Mobeen from Springs *** and he again promised to send technicians, he did after a week , nothing was done by technicians they just had a look and left -, I again called, this time I demanded them to take their fridge and refund me as I could not understand why they cannot replace the fridge as it is clearly faulty. I was sent form pillar to post by Mobeen saying I must call Defy- how can I call Defy if I bought a fridge from Fair Price? I am still sitting with the problem still today and the regional manager is trying to resolve this.