Maybe they asked for a refund? Please contact support.
Viewing post in Where did my money go???
Could’ve been me. I saw that a piece of content I’d produced was being sold directly as an add-on, so I purchased a copy of the game to determine whether or not it was following the licensing requirements correctly. I asked for a refund after, since my goal was just to check the legality rather than to play the game.
(EDIT: It was legal, though it’s a moot point now since it was removed)