If you book in a GTY, they don't usually call. Like the PP said, you usually just have to check online to see what you've been assigned or wait until you get your cruise docs. It is when you are in a confirmed cabin and they are upgrading you that they give the call (it is possible that people would refuse an upgrade). I would also imagine they are working the categories down to cat 12 (that way they know which cabins above that categories are open)
Happy Goofy -- don't know if they will still do this but the first time they went to Europe, we were booked on the TA and they released much lower rates after final payment. We were able to move our original reservation with a smaller penalty (a couple hundred dollars) to a future booking date (there were other penalties if we changed this future booking date, but don't remember what they were since we didn't make any changes). Then we made a brand new reservation for the TA at the lower rate.
Happy Goofy -- don't know if they will still do this but the first time they went to Europe, we were booked on the TA and they released much lower rates after final payment. We were able to move our original reservation with a smaller penalty (a couple hundred dollars) to a future booking date (there were other penalties if we changed this future booking date, but don't remember what they were since we didn't make any changes). Then we made a brand new reservation for the TA at the lower rate.