1. A normal fare ticket is valid for carriage for one year from
the date of commencement of travel, or from the date of issue
thereof if no portion of it is used. The validity of a special fare
ticket is specified by the carrier in accordance with its relevant
regulations. The validity is calculated from 24:00 of the date of
the commencement of travel or of ticket issue to 24:00 of the date
of expiration.
2. Types of ticket change: change the type of class, change the
date and change the carrier etc. The handling of the changes is in
accordance with if passengers are voluntary or
involuntary.?
3. If a passenger requests a refund, please fill in a refunding
card. Except loss of ticket, passengers must present all untapped
flight coupons and passenger coupons. Passengers' requirements for
refunds are not accepted unless it's in the period of validity. If
the passenger is voluntary to return tickets, the procedure should
be handled at the following places: a. The original ticket office
where passengers purchased tickets if not depart from the area. b.
The local carrier's ticket office or its duly authorized agent
ticket office if passengers have departed from the origin place.
The open tickets holder can only return tickets at the original
ticket offices where he or she purchased tickets.
(english.gov.cn October 20, 2006)