Brand new fridge has issues

I bought a brand new fridge from Makro Germiston on 23 April 2017. About a month later it starting freezing up so badly that I could not close the fridge door unless every 4 days I remove the drawers and wash the ice off in the shower. I asked for some advice on whether it is a setting on Defy's website and had absolutely no response from their website (and still have not). I then got hold of Defy on Facebook and explained the situation to them. They logged a call and then sent a technician to my house.

Since he has been, the problem has gotten worse. I went back on the Defy website and explained that the problem is now worse and still no response. I went back to the Facebook message where they responded the 1st time and explained that it is now getting worse. No response for weeks. Eventually the technician phoned me and arranged a time that he would come around. I took off work to meet him at home and he didn't pitch at all. I messaged Defy on Facebook and no response. Once the technician apparently just pitched at my house without arranging in time so there was nobody home (we all do work unless I arrange for someone to be here). I have tried another 5 times to make contact with the technician but he is not answering my calls or responding to my text messages.

It almost feel like they are just riding out the time until the warranty has expired. In the meanwhile, I am still having to take my fridge doors out every 4 days and wash the ice off of them which is just ridiculous !! It has been 9 months since I bought the fridge and I must have had 6 weeks in total where it worked. Cleary not worth the R4,699 I paid for the fridge...