Hello! My family has recently taken a few organized vacations through Backroads, but we are new to Adventures by Disney. I called ABD a couple weeks ago and put our names on the waitlist for Australia in December 2017. Today, I received word that our trip became available! In between that time, I've seen that discounts are available by booking through a travel agent/Costco. Wondering if anyone knows if/how I could take advantage of this in a waitlist situation. They are holding the reservation until Sunday. Thanks in advance!