We found out on a weekend last year... Literally like 6pm EST on a SATURDAY. I was so mad, haha. I was not expecting it whatsoever and was like, on a city bus by myself and just started crying like a crazy person calling my mom like "I GOT IT." Not ideal.
Actually, you'll "register" via and online survey, and then they'll send you to the portal of their travel agency. There, you'll put in your dates (ETA and Research dates differ by a day or two) and they'll give you a few flight options of which you'll choose what best works for you. They'll reserve that ticket request with a "ghost credit card" and then officially confirm your itinerary one or two days later.
Sorry to hear you're bummed! If you're set on teaching in Macau, I recently saw a posting on Idealist.org for English teachers. While teaching certification is a plus, it's not a requirement. Here's a link to one of the listings I saw: http://www.idealist.org/view/job/WP9g3jDxCbJd/