Disgusting service from Shoprite Retreat

I bought a double stove essential coil stove by Shoprite Retreat less than a year ago with a warrant of one year but when I took the stove back to them since it is not working , I was met by rude illiterate manager by the name of Ashley Arendse who told me that I can't return the stove and I asked him to give me one reason why he can't take the stove back since it is still within warrant. He couldn't give me a proper explanation and referred me to a trainee manager by the name of Romeo Roman who is worse than. The stove is not damaged or anything bad with it but its not working. So how can I pay R179 for something that is not working. I am appealing to the management of Shoprite to hire people with qualification to fill in managerial positions not to hire people who doesn't even know the definition of warrant. I have everything on the recording that he doesn't even know the definition of warrant not to mention consumer rules but he is the manager. I am urging people not to buy electrical gardets from Shoprite because when they cannot work they don't want to return which is breach of contract. Whenever I see a Shoprite shop now, I feel like vomiting because of their disgusting service.