Pathetic service from Hisense

I bought a smart tv hisense 50” in December 2017. I have been having freezing problems with my tv unit and contacted game rosebank in November 2019. I was told to contact hisense directly which I have done. Hisense has come out almost 5 times just resetting my tv and upgrading software. They even replaced the motherboard. The latest being 09/03/2020. I am appalled by the service received and would of thought that the tv would be replaced by them or credit note given so that I can purchase a new tv at game. I am shocked that game deals with such unprofessional suppliers. Clearly I will not be buying a hisense tv ever again. What is frustrating that the agents for hisense come out and assume that the customer is stupid. And then to top off want to take our tv in for assessment. How sure am I that the agents ***** parts from our tv and replace it with pirate parts which would then only last until the warranty has ended.