After tyre change: car pulls to the right

Hello dear tire experts, I bought a new car in the summer, so far everything went well. The summer tires were unobtrusive. Now I changed to winter tires last week: Dunlop WinterSport 5 on Rial Astorga in 215/45R17 V. I ordered them as a complete bike on the internet and they came finished by mail. Then I had them plugged in at the tyre house of my trust -> Since then the cart moves to the right. I checked the following: steering wheel let go -> car drives to the right steering wheel minimally to the left -> car drives straight ahead tire pressure OK directional binding OK (tire correctly mounted) wheel screws retracted On any road, at any speed. I’ve never hit over curbs or anywhere else by car. What could that be? Where is the right starting point? VW, tyre salesman, tyre fitter? Thank you so much