current package starts 11/28 ?

[Tricialiv]

so I assume I would need to cancel that package to use a new code if it starts 11/29 . Would they refund my money and I rebook using 11/29 for the date, then do room only for 11/28. My current deal seems to be just less than 20% off of package with dining. I have a goofy code but with later trip dates then mentioned on the get 3 free promo so I can't really be sure I would be saving any money. I am hoping for FD since DS is 11 and that would be a bigger savings I think -we are staying in a mod. So confusing!!