Wow- I've always been told that a promo can be extended as long as you check in by at least the last date it's offered. Of course I also was told that for a promo ressie, a regular ressie must be cancelled and rebooked which is what happened to me only last month. It wasn't a big deal- I still was fortunate to get the resort and dates I wanted. Now, for whatever reason, many were able to get their ressies modified without having to rebook. Again, that's neither here nor there as the end result is the same. For those who are having trouble extending if your dates start on the 20th, I'd be asking for a supervisor too just to clarify as the end result is not the same knowing that some can do this and others have been denied. I guess everything though is always subject to change. Good luck to everyone!---Kathy