Answer: Slotting allowance
Explanation: Manufacturers or producers may often have to contact retail stores, supermarkets and other retail channels when marketing their product, this often comes at a cost, the amount manufacturers are being charged by this retail stores in other to keep or stock the company's product in its store, inventory or warehiuse is called the sticking or Slotting allowance. In the context above, the fee demanded by the supermarket which sparked protest from jiffy's representative is called the stocking or Slotting allowance.