Hisense ****ed our December holiday experience

I have been battling with our fridge since October 2018. Since then we have 4 service numbers with 4 failed attempts of the unit being fixed. Hisense agreed to replace the unit 3 weeks ago. Every time we are promised the unit has been dispatched and is on its way. We have lost thousands of rands of cold groceries. Our holiday is completely ruined as we cannot go anywhere because we are waiting for the phantom refrigerator to be delivered. I have been sending emails and have only received one feedback from Hisense saying that a unit has been dispatched but no tracking number or any date has been given for this delivery. Again we are sitting under house arrest. Who do I go to regarding all our losses and discomfort over the holiday season? We still don't have a working refrigerator. We were promised a 50inch tv as a sorry gift. How does that make up for our lost family holiday time and who buys a tv without the necessary bells and whistles that goes along? No hometheatre unit? I feel Hisense China and their S.A. branch doesn't care about their customers as long as they are selling.