Original Member
Join Date: May 1998
Location: Highland PArk,IL,USA -- AA Lifetime Platinum, IHG Plat, UA Silver, Hilton Gold, Radisson Gold, Marriott Lifetime Titanium
Posts: 2,366
If you call to extend and the fare is not available anymore, just buy the ticket at the fare you had already guaranteed. The new, now available fare, is not required until your 24 hours is up.