Unfortunately, as Girimama33 said, posts offering tickets for sale are not permitted on the Disboards, so you won't get anyone offering to sell you one of their tickets.
As the PP have said, there are really only three ways remaining:
1) Call to see if they have any tickets available for sale via the phone. At this point, it is unlikely that they have any (they no longer have tickets available for 9/26 via the phone or online), but it's worth checking (I'd call ASAP).
2) Hope that they may have some tickets available for purchase on the 3rd at the ticket booths. If they do, they will probably sell out very quickly, so you'll need to get there when the ticket booths open.
3) Last year, the hotels had a few tickets for sale to onsite guests. So if you're staying onsite, you might check with the hotel's guest service to see if they have any when you check-in and on the morning of the 3rd.
Overall, if there are none for purchase over the phone, you really just have to wait and see what happens on the 3rd.