1.5 years later, still waiting for promised refund

Hi there<br> <br> Was contacted by Samsung (Sthembiso Kunene) finally in November 2015 to sort out a promise of refund that was made by Siyabonga (who I have been chasing for a year) from zaservice samsung in November 2014. Sthembiso ignored the raised issue of a promised refund or promised warranty and offered a free repair should things go faulty again in 6 months. I wrote back to Sthembiso in November 2015 requesting that the refund or extended warranty be paid as promised but I have not heard back from him. It has been 4 months now. I have emailed again last week asking him to direct me to someone who actually can help (or respond to me frankly) but there has been no response. One can only assume that he has left or that the lack of customer service from him is atrocious? Please can someone else assist in his absence. This is tiring - it is a year and a half since my first contact to resolve the issue of a very expensive fridge needing repairs twice and of the R850 refund. Please can someone actually assist!!!??