The co-op manager stated in the initial post that they were going to be out of town until the 20th. The co-op originally closed at 8:00pm on the 20th. Typically, the manager announces a deadline to pay by, then if not everyone has paid, opens the co-op at that time for others to purchase the unpaid items and pay immediately.
If I recall correctly, there is no waiting list, being that the object is to get the payments in asap. Unless RJ (or another qualified member of the staff) cares to illuminate us differently, I'd assume that's the way it works.
-Rimist (via Tapatalk)