Bad Service!!!

I purchased a tv at Makro Pietermaritzburg in 2016. My remote stopped working while my tv was on Usb mode. I then bought a hicense remote to change my tv from USB back onto HDMI. However the remote did not work. I then purchased a universal remote and the same thing happened. I then took the tv back to makro to get them to sort it out because the buttons on the side on the tv were not working so i could not use the tv which i paid R7000 for. When i took the tv back to Makro the sales rep booked the vehicle in to Hisense. 2 weeks later i received a call from Makro tv department telling me that my tv was ready for collection. When i got there i asked the sales person to test the tv however the tv was still on usb. The hisense technician was in store at that time and he tried to put the tv onto HDMI using the buttons and it didnt not work. The tv was still on Usb. I purchased my tv from Makro and Not hisense so why is Makro giving me the run around. I am now without a tv for 3 weeks and it seems that both Makro and Hisense cannot assist me. Service is pathetic i am very unhappy with this aftersales service.