1. A computer-implemented method comprising: storing, in a digital wallet of a first user, item identification data that identifies a first value-ascertainable item issued by a first merchant, owned by the first user; receiving, over a network, exchange data that indicates a second value-ascertainable item issued by a second merchant different from the first merchant, to be exchanged for the first value-ascertainable item; in response to receiving the exchange data, removing, from the digital wallet the item identification data, first item data that identifies the first value-ascertainable item and saving item identification data that identifies the second value-ascertainable item; determining a current location of a device of the first user; identifying a location of a store, of a merchant, that is associated with the second value ascertainable item within a certain distance of the current location; causing information about the second value-ascertainable item to be displayed to the first user; wherein the first merchant is incapable of redeeming the second value-ascertainable item and the second merchant is incapable of redeeming the first value-ascertainable item.