Ataraxias on 08 April 2018
I don't know about food specifically, but I've seen supplier side restrictions on other products.
"We sell you (the store) our product at this price but you can't do anything to that could potentially devalue our product or brand without our consent."
So hypothetical scenario would be that you can't do a buy 1 get 4 deal on an iphone cause that implies the value of the iphone is really 20% of the price.
