more money on car

As the topic says more money on the car again, August £300 on a new throttle actuator and now £114 on a exhaust pressure sensor which should have been more as skoda paid half the the part as it's a known fault. wish i phoned skoda when the throttle went wrong to see if they would have done the same. For these parts to wrong on a car thats done 32000 miles is a bit of a joke but what can we do.