One price policy
The price does not vary according to payment method or promotional offers.
Under a one price policy, the seller shows no discrimination. The seller charges all similar types of purchasers the same price. Also, the terms of sale are the same. Negotiating or bargaining are out of the question.
There is no waste of time negotiating prices.
If we offer a discount, that offer will be available on equal terms to all purchasers.
According to Marketing-Dictionary.org:
“A one price policy dictates that, at a given time, all customers pay the same price for any given item of merchandise.”