THE WORST Customer Service - Makro Montague Garden

Im having the worst customer experience from Makro Montague Garden. I bought a Samsung TV and had it for less than a month. It started giving me problems and I was told to book it in at repairs and they will get back to me. I have not received any feedback at all and the customer service is really bad. When I call them they tell me they are waiting on Samsung before they can do anything. A 5 year old boy will be able to se that the TV is disfunctional. I just want my dam money back so I can go somewhere else to get me a working TV. The manager of the store told me " Oh yes we are aware of the bad batch of TVs we received but just book it in for repairs" SERIOUSLY??? A Brand new TV