Clicks' personnel demeaning attitude and rudeness to customers

I am extremely disappointed and disgruntled at the level of service I received from Clicks Sunnypark. I bought a Kambrook blender on 31 July 2018. I opened it for the first time on the evening of 10 Aug to use it. The product was faulty and released smoke and a strange smell. I returned it on 11 Aug to Clicks Sunnypark where I was met with rude and disrespectful personnel who refused to refund me or exchange the product insisting that it's not possible to buy a product and not use it for 11 days and insisting that I had used it for business purposes, which was not the case!!!!!!! The manager at the store refused to test the faulty product to see what I was talking about and simply said it's not their problem. I was given a number to call and not told who and what that person is and why I should call them. When I called that person (Sipho), he told me he could not talk because he was at a funeral. I cannot begin to comprehend the demeaning attitude and lack of respect I received, as I was made to feel like a stupid, crazy ****!!!! The blender is still at the store but I do not have an exchanged product or a refund!!!!!!!!