Thread: reissuing buddy pass / one year expiry?

Question: bought a buddy pass 5/31/11. my buddy was not able to use it when he originally thought he was going to go back in 2011; now he wants to depart 5/15/12 and return 6/10/12. travelnet let me rebook it (new ticket #, etc.) but I am worried that the return date is more than one year from the date of the original -- could he show up at the airport for the return flight and find that his ticket is now worthless?

anyone have any experience with this? thanks.