Is this the first time you are buying your tickets online? Then perhaps you didn’t know yet that you will immediately receive your tickets by e-mail or that they are valid the moment you have received them. You do not even have to print them! You can show them on your smartphone at the reception, without having to wait in line. Did you not receive your tickets immediately, not even in your spam folder? Then send an e-mail to email@example.com or dial 015 34 20 00.