I saved a couple 2 weeks ago in hopes of being offered an upgrade from a value to a moderate for a low rate.
I didn't get that PIN, but I did get a PIN today for June 2012. 30% off deluxes. Unfortunately, we won't visit the World in 2012. So, it took Disney 2 weeks to realize I saved a vacation and then to send me the code. I left it alone for 2 weeks.
Better luck to you!
K