Hello! I just got my OV chipkaart and decided to travel with it today. The first thing i did is topped up the balance for 20€ at the Groningen train station with my debit card.
Then I checked in at 16:34 (I received a notification from NS app about check in) and got on the train.
After arriving at my destination I wanted to check out in Winschoten train station but it said that I need to top up my balance. So I decided to check my balance at the machine and it said that 20€ were withdrew from my account at 16:34 (the time i checked in).
Why did it do this and can I get my money back?