This may be naive but is there anything* stopping you booking the RAP pass before buying the ticket? Then you can presumably cancel the rap booking if you fail to get a ticket.The Ride Access Pass is a privilege and not a right. Access to the rides isn't being prevented, if you've bought a ticket but there aren't any RAP slots you're still able to use the main queue. The only exception to this, and those who may have legitimate legal means of complaint, are those who aren't ambulant.
The system needs a redesign, so that RAP holders are able to see if the daily quota for RAP passes is full when, or before, booking their tickets.
*Excluding the current omnishambles caused by selling tickets before the pre book system