Battle with my new car

I bought a new car last year in October when i go to collect the car i show them that the back seat on top have a hole in it until now nothing is done. Second the car radio is not working well when starting the car must touch the volume button to work. Third the outside temperature is showing higher than normal for example its shows in the morning already 34. When I drive the car and slow down its jerking they said to me its the turbo thats doing that. Also the refs is going up to 3 &amp