I ended up on hold for 97 minutes, and hung up.
The next morning I called at 8, and I received the message that they would call me back. They returned the call 30 minutes later, and I got the reservation changed.
At the end of the call, I asked her about my experience the night before, and how I didn't receive the offer of getting a call back. She said there had been a weather issue in Atlantic Canada that created a larger call volume.
And when that happens, she said they turn the option off!!! The reason: so people don't get calls back at 3 a.m.
Seems ludicrous to me, since the message does tell you how long it will take for the call back to come.
I told her there was also no message about call volume, and she said she'd raise it with a supervisor.
But the kicker: after all that, I realized she hadn't even bothered to give us a seat assignment. So I was soon back online to complete the transaction.
Our next trip may be Christmas, and I'm now in sticker shock. I can't believe the prices for AC travel then. Looks like it'll be back to Buffalo for us.