What port are you trying to leave from? A particular cruise?
No agent is going to call every hour and put as much effort as you are into trying to get on the ship. My PVP might while she was at work .. but she works for Carnival and is off over the weekend.
I wish you luck and hope you can find something else if that cruise stays sold out. With the holidays, its going to be hard to find a cruise this late and get it booked.
Maybe if you told us which port you are trying to leave from or which ship, someone could come up with a alternative.
Conquest 7/21/13, Miracle ALASKA 8/27/13, Miracle HAWAII 9/17/13, Celebrity Summit, 11/30/13, Celebrity Summit, 12/7/13, Celebrity Constellation, 2/7/14, NCL Epic 3/2/14, Allure 5/4/14, Allure 11/2/14, Quantum 12/8/14