First of all, we ask you to keep calm. There can be many reasons why the door is locked: You are too early or too late for the appointment the employees are being held up by a minor emergency or receiving goods at this very moment .... If you have a booking with us, then the door will also be opened promptly. Danger:  With us you are only guaranteed to play with booked seats. If you appear spontaneously, it may be that the door is locked because nobody was expecting you. It may even be that there are no employees on site. In this case, we ask you to book an appointment, as we cannot receive you spontaneously today.