2Bangkok has multiple links
King Power has other evidence.
I am really confused about something. I thought you pay for your items, then receive goods at the departure gate or on the plane.
I have bought things at duty free, though I can't recall the last time I did at either Suvarnabhumi or Don Muang.
I was with somebody who bought stuff at the King Power department store in Bangkok, but I swear she had the item sent to the departure gate before the flight.
Just because somebody has a high position or status doesn't mean he or she isn't a shop lifter.
I am no fan of King Power, but I'd suspect people are ripping them off left and right at their stores, scam or no scam.