Factory Fault Hisense Fridge

I bought a Hisense Bottom Freezer from Game Retail Park, Beacon Bay on 02 March 2019. The fridge has a 5 year warranty. The fridge was a problem from the start. It over-freezes and damages food especially meat rendering it tasteless. I kept on doing manual defrosting until I could bear it no more. I reported the problem at Game last year. After many frustrating delays an independent technician appointed by Hisense finally came at the end of October. He said the fridge needs a new thermostat, he needs to order it, and he will be back in 2 weeks. He has disappeared into thin air. I went to report the disappearance of the technician at Game 2 days ago. They tried to contact Hisense with no success. I definitely would never buy a Hisense product again and I would never recommend it to anyone, even an enemy.