devik, I've got an idea how I might have done this. There's a link in an Email message I got from Continental to My Reservations. You click on it and it takes you to a web page where you're asked to enter your record locator and last name. I don't remember doing any of this, but if you take that route you may log on without having to enter your One Pass number. I too was a little disappointed with the Continental Internet agent, who seemed to believe she was doing me a favor by waiving the change fee. She said too much time had elapsed (14 days since I made the reservation) and she couldn't refund the money.
Chasbondy, the exact same words passed through my mind.
xyzzy and mk1, I agree, they should refund. But is it worth the time? I envision spending an hour or two on hold, arguing with them, maybe writing a letter or two. If craz is right about the points and elite credit, maybe it's not. But then on the other hand, I can envision having to argue with them about the points and elite credit, and it's going to take some extra bookkeeping to do this right on my taxes -- it was a business trip, but now I'll probably be allocating at least part of the credit to vacation, that I can't deduct.