楼主应该是当时买到了特价票吧....
Notes on refunds:
1. When a ticket (including ticket that has been changed) contains a fare based on which the ticket is non-refundable, no matter whether or not the ticket has been used, all fees that have been collected by Air China (including fuel surcharges) will not be refunded.

千金难换心情好。想开点吃的好吃的，努力工作下，就都赚回来了。