Abstract: A transaction processing service operates as an intermediary between acquirers of financial transaction requests and issuing institutions that process the financial transaction requests. The intermediary receives an authorization request generated based on a transaction initiated by a customer at a point of purchase. The intermediary service then determines one or more stored value items that can be applied to the transaction. Stored value items may be determined based on the customer's identity or based on transaction characteristics, such as the point of purchase or the transaction items. The service sends a transaction notification to a mobile device associated with the customer to notify the customer of the available stored value items. The service then applies the stored value items to pay a portion of the transaction amount and initiates a payment process to pay the remainder of the transaction amount.

Abstract: A transaction processing service operates as an intermediary between acquirers of financial transaction requests and issuing institutions that process the financial transaction requests. The intermediary service enables a customer to selectively change the status of an account's associated with a payment instrument by activating or deactivating the account. The intermediary service may manage account status locally using a rules module. Alternatively, the issuing institution may manage account status, while the intermediary service provides an interface for customers. A customer communicates with the intermediary service to direct the service to change the account status. The intermediary service determines the account's issuing institution and provides an indication to the issuing institution of the current status of the account (or of the change in status).

Abstract: An acquirer communicates with an intermediary transaction processing service to handle financial transaction requests received from multiple points of purchase. The acquirer receives an initial authorization request generated based on a transaction initiated by a customer at a point of purchase. The initial authorization request includes unique identifying information associated with the customer. The acquirer determines that the unique identifying information is associated with the intermediary service and provides at least part of the initial authorization request to the intermediary service. In response, the intermediary service provides account information to the acquirer. The acquirer then generates a modified authorization request based on the initial authorization request and the received account information and transmits the modified authorization to an issuing institution to request approval of the transaction.

Abstract: A transaction processing service operates as an intermediary between acquirers of financial transaction requests and issuing institutions that process the financial transaction requests. The intermediary service utilizes a customer's mobile device as an out-of-band communication channel to notify a customer of a received financial transaction request. To send the notification, the intermediary service retrieves stored customer information, including an address of the customer's mobile device and a list of payment instruments that can be used to pay for the transaction. Before continuing to process the received financial transaction request, the service may first require the customer to confirm the transaction via the mobile device. The intermediary service retrieves financial account information associated with the customer from issuing institutions, and, if the transaction is confirmed, provides the account information to acquirers in order to allow transactions to be processed.