Called today to make some changes.
It seems the message have changed. When I called, instead of announcing the change of hours, they simply said "we are experiencing extremely high volume of calls" message which I never heard before. But more interestingly, 5 seconds later, the agent answered my call.
I think this new message is to hide the fact that their operating hours changed without announcement. So that if someone calls after 8pm, they would wait so long that they would give up. (most members who are not Flyertalkers not knowing that operating hours have been slashed)
This seems to be a dirty trick, and I don't think it's fair. They would be better off simply acknolweding no-one will be there to pick up the call.