Where does it say this will end on Aug 13th?

It is now Aug 14th, ~23:30 in Auckland, and the fare still shows in ITA and on Orbitz. The linked page doesn't say anything about "purchase on or before the 13th", and there seems to be nothing to suggest that in the fare rules (displayed by ITA). However, I have not tried to complete a reservation

As an aside, this books into K, which doesn't appear to accrue miles in many (any?) *A programs