I redeemed a round trip ticket a few months back for CEB-HKG-AMS-HKG-AMS, i called up MPC today to reschedule the last sector as i have decided to stay in HKG for a few days, and the agent who took my call told me that there will be a reissuance fee of $100 per passenger (2 of us), so i did not confirm right away. I searched through Asia Miles website and read in their FAQ's that there is no fee to change ticket dates as long as there is a seat available and its within ticket validity date. So i called up MPC again, and the person who took my call this time told me there is no fee so changed my ticket dates right away. Seems like there are still some incompetent MPC agents around who are not so familiar with the rules, FAQ's so to speak.