When I called to book our vacation I asked the CM if there was a code assoicated with my name and there was! It never hurts to ask when you call.
We have booked a room only one day at the beginning and one day at the end of our package December 12/9-12/15. We did not want to have the park tickets or dinning for those days. So I too am waiting for the public room only discount. According to
www.mousesavers.com the code came out on 9/27 last year and the year before. I keep checking thier web site!