FAULTY MICROWAVE

We purchased a Mirror 40l ceramic Microwave on 1 October 2017 from the Samsung store in pavilion mall. As of 25 December after using the 10min heating function the microwave overheated immediately without even finishing the 10min heating period. The microwave switched off and refused to switch on,it came back in the following day and now does not heat the food properly,we heating small bowls of food for 2min straight and the food is still cold. On some occasions it heats slightly and others not at all. We returned the microwave with receipt and invoice and were dealing with Asheran in store who refused to exchange our microwave. He advised he will send it for repairs, I told him this microwave is only 2months old and should not be giving us any problems,we requested an exchange again which was refused and in turn he advised we must heat our food on the stove while we wait for it to be repaired,we requested a microwave to use in the interim which was laughed upon by him and othrr staff and again he told us we must use the stove. So we are now inconvenienced due to faulty goods,I must say that upon purchasing the goods the staff were friendly but upon returning faulty goods we were treated with disrespect and they didn't even care about the problems we experienced. We had to go on without a microwave to heat our Christamas Dinner and now have to go without a microwave for who knows how long...I don't feel that I should be inconvenienced for buying a product from Samsung. My microwave should have been exchanged on the spot as there is clearly an issue with some part or another as it's unusual to experience such problems from a 2 month old appliance. Funny enough everything in my home is Samsung and I never thought I'd experience such problems if something wasn't working correctly. Now i must hope they repair it and also hope it doesn't come back damaged as it's a Mirror finish. I still demand that my microwave must be replaced and not repaired.