Originally Posted by MonarchVV

Common sense, eh? How does the start and end date of a sale have anything to do with the expiration period of a ticket? The sale ad on the first page makes no reference to such a thing either.

Unless this was clearly labelled why would any newer player know of such an obscure thing in the first place?

Considering this is like the 16th ticket exchange, I'm not sure why you'd expect an explanation at this point. Tickets obtained through this type of sale have expired since the very first one, nine months ago.

You get a pop-up right after your roll saying if you'd like to use the ticket. From there, the expiration date is clear. If you didn't even go to the exchange shop between now and then, yeah, it's pretty much your fault. Newer player or not, the game took the steps to lead you to the exchange shop at least once, and just about everything has an expiration date there.