Abstract: One embodiment of the invention relates to a method of operating a payment transaction system maintained by a first party who receives an instruction for a first transaction. The instructed first transaction is directed from a second party to a third party, and includes a transaction date on which the payment transaction system is to give effect to the first transaction. The first party stores the transaction instruction into a database, and permits the third party to access those transaction instructions stored in the database that are directed to the third party. The first party then receives a request from the third party to bring forward at least in part the instructed first transaction. In response to the request, the first party re-directs the first transaction at least in part from the third party to the first party. In addition, the first party creates a new instruction for a second transaction in the system.