Maybe the sale seats have all been sold ?? The idea from AA's point of view could be that once the software finds a deal, they would like you to book it. The idea that airline seat pricing is a multi-layered matrix of supply, demand and time is hardly news. Don't get me wrong - I am sympathetic - but if the sale seats are all sold it makes sense to me that you would not be able to pull up the code again. Of course, if they have not all been sold (and I realize that there's probably no way for us to know that!), then your predicament does kind of suck...