One month out of warranty

My 60 inch SAMSUNG TV is 2 years and one month old. It cost me R 14500. It has suddenly developed two vertical green lines. I have called SAMSUNG who referred me to one of their support companies, the company told me that this should not have happened and that I should call SAMSUNG back to see if they would assist. Again, SAMSUNG referred me back to the support company who told me the repair would cost up to R 12000!!! This is like renting a TV for R 600 per month. I doubt I will buy SAMSUNG again.