After successfully completing a booking, two standardized emails are sent to the main contact (the email address registered as the username). If an additional contact for email correspondence was provided during the booking process, all standardized emails will also be sent to this contact. The first email serves only as a receipt confirmation, indicating that the booking request has been received. It does not confirm the successful completion of the booking. The booking is considered successfully completed only upon receipt of the second email, the "Ticket Voucher." The ticket voucher contains all booking details as well as a link to download the QR code (voucher), which customers can then exchange at any ticket machine for valid tickets or passes.