Non-existent customer service

We bought a defy fridge from Hirsch Springfield 2 years ago and have been loyal customers for years. Their sales people really know how to charm buyers, however their service department customer centrality is non-existent. The fridge has been making a loud noise for some time and after numerous complaints they finally sent a 'technician' namely Asif through last week to check on it. I put technician in inverted commas because I'm pretty sure this is someone they hired off the street as all he could tell us was that it was normal and just because the kitchen is closed off it sounds louder. Lo and behold a week later our fridge has shut down completely. We phoned the store yesterday and spoke to Sashen who said they won't send anyone on that day but will try for Sunday. Hirsch will take no responsibility for any food spoilage as it's not part of their policy even though it was due to their incompetence that the fridge has now stopped working. That is R1000's of rand out the window with no apparent responsibility on their end. It's almost like they wait for the warranty to end and string you along so they don't need to assist and send technicians who don't actually know what they're doing. Utterly disappointed in their responses to us thus far and no-one I know will be buying from any of your stores,I will make sure of it on every social media platform available.