reservations without provision

Dear hosts, I have a problem with calculating the booking price by booking.com.

In the period when I was entitled to the first 3 reservations without commission, I received one reservation. The amount of the commission (about 60 euros) was deducted in the details of the reservation. How is this possible when during my registration on booking.com I was guaranteed that I am entitled to the first 3 realized reservations without paying a commission? Best regards and thabk you for help in advance!