DayZ 2 + Badlands · Live DLC
Wishlist Badlands
Steam and Xbox
Short answer
Official store pages exist. This site does not sell it.
Also: steam badlands · xbox badlands
What we know
Bohemia: wishlist on Steam and Xbox. Price talk has included 'below $25' in coverage — empty here rather than wrong if the store moved.
What to do
Wishlist on the official store. Come back for the hour.
Don't
Don't buy keys off a random overlay.