Confirm change and that it is refilled properly and see what happens over the next month. If no oil is consumed you know the dealership fed you a line. If you do start to see some usage you know have something to investigate more thoroughly...
If it used 4 qts it gonna keep using, an engine doesnt just magically decide its full...
2013- Passat SE DSG 101,000 miles
RIP 2003 Jetta - 444,000 miles
See ya 2001 Jetta - 280,000 miles
Thanks to Paramedick (Bruce) for being my local Guru for over a decade!