Patent ID: 7650314

Claim:
An account issuer system comprising: a processor; a network interface communicating with the processor; a memory connected to said processor; the memory storing instructions that, when executed, cause the processor to perform the steps of: receiving, from a merchant system, a request to establish a recurrent billing account, said request including a proxy code associated with a primary account number associated with a transaction account wherein said merchant receives a request from a customer to set up said recurring billing account funded by said transaction account; assigning a merchant system marker to said merchant system to identify said merchant system; creating a marked proxy code by appending said merchant system marker to said proxy code; storing said marked proxy code correlative with said merchant system in said memory; sending said marked proxy code to said merchant system; receiving, from said merchant system, a merchant transaction request including said marked proxy code; and validating said marked proxy code prior to authorizing satisfaction of said merchant transaction request.