I wasn't able to get tickets either, so frustrating! I'm still only halfway through the dreaded green bar

If you are staying onsite you might not be completely out of luck. Last year, and we did it one other year as well, we were able to go down to the lobby (I think it was at 5am) and purchase tickets for the party being held that day. I was told by everyone that I spoke to at The Grand that they didn't have tickets held for hotel guests and I even asked at check in and was told no. We still went down in the morning and sure enough we were the second group in line. Last year we did it for two Oogie Boogie parties that were held during our dates.