Only the receipt is recognized, not the person.
It does match the situation in the black market.
There are those here who come to sell illicit goods and those who come to buy certain forbidden items. Everyone is masked, so nobody knows who is who.
Recognizing receipts, not people, makes sense in this situation.
But it also raises a dilemma: you can't confirm whether the person who comes back to pick up the goods next time is the same one who stored them in the first place.
Given the status of the consortium involved, this shouldn't pose a major issue.
"The Snake Badge Consortium has branches throughout the major kingdoms, wielding significant influence," Slyther mentioned as he glimpsed towards the second floor, adding, "You could think of them as the underground equivalent of a professional association."
If a professional association is a platform beneath the sun's rays, then the Snake Badge Consortium is an organization thriving in darkness.