Due to the classification of the tickets, it is possible to change the date, and refund at least 24 hours before the time allowed for the change. In this case, the difference in the classification of tickets will increase the fee.
Tickets will not change.
The validity of the tickets provided in the basic tariff and the discounted rate of the ticket indicated in the preferential rates or tariffs shall be limited to the procedures specified in the tariff conditions.
The passenger will not be held liable for any delay due to passenger's fault.