Refusing to take back goods that don't work

With great dissapointment I wrote this review about the lack of service from Game Promenade and just to place on record, this is my second bad encounter with this store. I bought a microwave in May 2017 at the N1 City branch and in since purchasing this item I have been experiencing difficulty with the microwave, I then went to Game Promenade and advised them that the item is not working properly in October, I explained that the plate inside the microwave pops off when placing bowls inside of it and when heating items inside of it, the whole microwave heats up, however they are refusing to take back this defective item of theirs, they continue advising that they have to send it to have it checked by the technical team, however because I am dependent on the microwave, I could not let them send it away and being without a microwave and in November I decided to buy a new microwave but I am completely disgusted with the manner in which this query was handled by them and this after it clearly says that there is a 1 year warranty on the item, however when wanting to bring back goods the does not work properly, the refuse to take back their ******* and make it seem as if the customer is lying about the problem, they are such a well known big retail company providing such bad service and when I said I was going to load this matter on hello Peter, they did not hesitate to encourage me to go ahead and load the complaint. Another issue of concern is that this type of bad service is always given in coloured areas. These people working at the stores think it's only coloureds so let's treat them like floor rags, this does not happen in the white areas as I have shopped in other areas as well and returned goods to the stores without any problems...Games service is totally pathetic and I promise that I will never buy anything from this store ever again, guaranteed. I promise myself that no matter what is needed, I would go and support other businesses who care about their customers and go the extra mile for their customers...totally disgusted and one unhappy customer...?????