In Reply to: re Jetstar and changing name on ticket posted by littlemiss on Thursday, 2. February 2012 at 07:21 Bali Time:
From what I understand from their T&C, you're paying them to cancel the original ticket and purchasing a new one at the current rate. So you pay $40 + (New ticket - old ticket). So the first option might be because the current ticket price is $260 (+$40 name change fee) higher than it was when the tickets were originally purchased.