I had a Global Promotion Certificate (believe that was the name of it) that I used to book a night stay in Portland, Oregon, before flying home from our trip to the coast. When I view the reservation I find this appearing:
Please note that changes to this reservation may not be made online. To make changes, call 1-800-399-4229 toll-free in the USA and Canada, or one of our worldwide reservation telephone numbers.
I've used MegaBonus Certificates as well as Visa Certificates and been able to make changes to them online many times. Guess they just want to hear my melodious sound on the phone!!!
Any thoughts on why the difference?