Weird about Valkyria Chronicles II not being available to download from any PSVita... is in offer right now on the US store at only 5$:
https://store.playstation.com/#!/en-us/games/valkyria-chronicles-2/cid=UP0177-ULUS10515_00-VALKYRIA1937PSP1?emcid=so-ga-159&utm_medium=Social&utm_campaign=PS_Store_All_Deals&utm_source=PS_Blog_Post&utm_term=so-ga-159&utm_content=Weekly_Store_Post