The soundtrack is actually unrelated to Square Enix Support - Square Enix's online shop that handles games and stuff is actually run by a separate company (Digital River I think they're called) under contract to SE. Also for anything with a 'limited time offer' like the mini Dalamud minion, usually you see a disclaimer that says "while supplies last". And I think that's the case with Before Meteor - the SE store has just sold out of the first run edition.