Can You Apply a PIN to Existing Reservation?

[WDW Princess 71]

I just got one of those emails with special rates using a PIN code. I am already booked for my DL vacation for November, just the deposit paid so far. Can I call the reservation number and apply my PIN to get the reduced rate or is this for new reservations only? Please advise as I've never gotten a PIN before!

 

[PrincessMonkey]

Yes, you should be able to use the PIN for no extra charge/fees as long as there are rooms available under the PIN code! Call as soon as you can to check on your dates.