The American arm of the online retailer previously sold PSN games and voucher codes directly from its website, but pulled such content overnight.

“We have no announcements regarding this change in selection, however we can confirm that Amazon Digital Video Game Downloads is not currently offering PlayStation Network Online Game Codes and Points Cards,” Amazon told PSN Stores when quizzed about the removal.

Bizarrely, all references to PlayStation Network content appear to have been removed from the website for the time being. The mystery continues...