Receive the serial number before issuing the ticket? > Yes. You need to use the QR CODE to activate the physical ticket at the machine; for online reservations, the serial number is used to activate it, and it will be in the form of an electronic ticket.

May I ask, after buying an AREX ticket on Creatrip, will I receive a 13-digit serial number? After receiving the serial number, do I go to the AREX official website to select the date, time, and seat for my ride? If I make a reservation for check-in at Seoul Station, can I use a QE CORD? Or do I need a physical ticket instead?