Inspection at V70 D II + 50,000 km

Hello together! I have bought my Volvo V70 II diesel 2.4 liters for about 1.5 years now. I used it at the time. At the time of delivery the 2nd inspection was done. Now the car has been annoying for 4 months that I should do the next inspection after all. After the Volvo dealer here in Cologne did not react to an mail, I called today. For the 3rd inspection (with me as mentioned canpp 50,000) they want to have nevertheless smooth 550 euro. In addition still new disk wipers. Here ha b i don’t have a price. I expected 300 euros. But these are prices that are beyond my imagination. And when they find something then it starts. What do you have to pay for prices like this? … or am I just very sensitive???