有关jetstar更名的问题

5 Passenger Name Changes • Permitted upon payment of the applicable Change Fee and Fare Difference within

Change Deadline.

• Name changes can be made for an individual passenger on a Booking, but must apply

to all flights for that passenger.

• Name changes are not permitted for Qantas Frequent Flyer Qantas & Jetstar Any Seat

Award Bookings



根据这条款，要补一个什么fare difference。更名的fare difference是个什么东东，有人有这个经验吗？