IDK Maybe they show how they appreciate you by kicking in some of the hanna reagents for whichever checkers you purchased since " more brands " are adding in bonuses it could be another accident in your favor this time and the karma train can roll on... I recently got free coral from wwc took them 10 mins to call and say it was a glitch in the computers some were vics picks a few g's worth of coral. They refunded shipping. and.... crickets for my valor