Originally Posted by shore9
you must also pay a fare difference as well. An M fare is fully flexible, with no change fee, however they want a fare difference of 400 dollars for me to change my routing to YUL - YYZ - YVR - HKG instead of the current YUL - YVR - HKG that I am booked on. To me that is not a flexible ticket at all, I still view it as a 400 dollar change fee.
That's not what it saids -
From the T & C page that you got the fare -
"# Tickets are fully refundable(exceptions may apply on M class). Tickets are non-transferable.
# Changes are permitted. A change fee may apply."
It's free date changes 7 days before dep and after dep on this HKG fare but rerouting always involve fare recalculation.