I received the email with the 40% pin code. Since we're a large party, I had to book 5 rooms. The CM said the pin was only good for three rooms. But he checked the name of someone else who was going with us -- and he had a pin! Hooray. This saves tons of money. We're going to GF end of May/beginning of June.
The weird thing -- we wanted to leave on 5/31. The pin wouldn't work on that date, but it does on 5/30. We'll leave a day earlier.