I as the same commenter that's below me encouter the same exact problem - that is I can't download the latest update even tho I bought the game.
Viewing post in Knightly Passions [1.03 version] 18+ comments
That's kinda nonesensicall, because as stated the promotion was for the package that was worth 10$. So I think we as a people who bought the thing on promo (for 5$) can still expect the same treatment as people that bought the game for 10$, because as stated - it was a promotion for the package that was worth 10$.