Faulty hyundai kona.2018 model

My hyundai kona is 1 year 11 months now but already the timing chain is replaced, oil pump replaced and after that the heater not working and fuel consumption is totally bad. I took it several times to the dealer but it is just becoming a s**** day by day...i can tell this is a factory fault and the car was bought brand new in 2019 August.

Why cant they just admit that there is a factory fault with this car?

Am stressed and dissapointed