Frustrated Client

So, i bought a new fridge (side-by-side) last year in Oct 2021, and 2months later, the fridge side started freezing the food, water, veges, etc. I reported it and they came check and was told that they need to replace the "Damper" (that controls flow of air); the part was replaced eventually. Unfortunately 6 months later (Sept 2022) the same problem started again; i called the store to report the problem and only got help in November after i had gone back to the store to enquire. Hisense Technicians came in again and told me that the problem is now the "Temperature Sensor" that needs to be replaced. I told the Technician that am not comfortable with them replacing the 2nd part and my main worry is what if i experience the same problem after the warranty had expired (i will be sitting with same problem at my own cost). I told them i have lost confidence on the said Fridge/Freezer and that am no longer interested in it. I had to call Head Office/Call Centre to voice out my frustrations and unfortunately my concerns are being disregarded!!!