After booking the ticket with CTrip, there was a customer service staff contacting me. Among 135 tickets, it included free explanation. Asking if I needed to make an appointment because I wanted to take a look by myself, so I didn’t make an appointment. It’s probably unnecessary to pay separately.
At that time, after booking the ticket through Ctrip, a customer service staff contacted us. Among 135 tickets, there was free guided commentary included, inquiring whether we needed to make an appointment because I wanted to look around by myself, so no appointment was made, and it shouldn’t require separate payment.