1. A method, comprising: determining transaction information associated with (i) a buyer who has arranged to purchase a product from a central controller at a first price established between the buyer and the central controller and (ii) a merchant that offers the product for sale at a second price, different from the first price, without offering the product for sale to buyers at the first price; transmitting information that facilitates the acquisition of the product, by the buyer, from the merchant, in exchange for payment provided by the buyer, to the central controller, of an amount based on the first price; and providing an amount based on the second price to the merchant.