Abstract: Computer-implemented systems and methods for a consumer to buy gasoline at a predetermined price, comprising enabling a consumer to prepay an operator for a selected quantity of gasoline at a prepaid gasoline price determined by an issuer; issuing to the consumer a gasoline debit card for identifying the consumer in connection with gasoline purchases made using the gasoline debit card; enabling the consumer to purchase a quantity of gasoline not to exceed the selected quantity from the operator using the gasoline debit card; and reducing the prepaid quantity of gasoline indicated owed to the consumer by the purchased quantity of gasoline received by the consumer.

Abstract: Computer-implemented systems and methods for a consumer to make transactions in a foreign currency at a predetermined exchange rate, comprising enabling a consumer to prepay an issuer for a selected quantity of a foreign currency at a prepaid exchange rate determined by the issuer; issuing to the consumer a foreign currency debit card that identifies the consumer and indicates an amount of the foreign currency owed by the issuer to the consumer for use in foreign currency transactions made using the foreign currency debit card; enabling the consumer to conduct at least one transaction with a vendor in an amount of the foreign currency not to exceed the selected amount; paying the foreign currency in the amount of the transaction to the vendor; and reducing the selected quantity of the foreign currency owed to the consumer by the amount of the transaction.