Thank you for this post. I am a new Prestige member and was trying to figure out how to use the certificates.
1) I am flexible with my travel dates and was looking for YWG-STR on several dates between May and 08 and Feb 09 but could not find any that displayed the eligibility symbol when I used the SWU code. I also tried to simplify by just looking for YYZ-FRA but also no success. Does this mean all upgradeable seats to Germany are gone?
2) Also, while I am willing to pay for a M fare to get the upgrade I would not want to use this fare in itself. When I called AC the agent said that only Y would be fully refundable - so what are the refund options for M fares?
3)How far ahead can one use the upgrade ceritificate to get a reservation?