Defy pathetic customer service

I started having problems with my side by side fridge freezer about 2 weeks ago(11/02/2020). The technician came out and I was told the unit will be replaced. I had to follow up every time as to how far my claim was. It took a good couple of days for the paperwork to be signed off. Then I was told that unfortunately there is no stock available in the Western Cape. Up to now I am not sure when I will receive the new unit. In the mean time my food stuff in the freezer is going off and the fridge is no longer working. I phoned yesterday (24/02/2020) again to follow up. The reception took my details, but my cal was not returned as yet.