Real time account update

A method is used in a system that includes a financial service provider coordinating accounts issued by an issuer to cardholders requesting credit from merchants. Each merchant has an acquirer with whom the financial service provider also coordinates the accounts. The method can be performed by a merchant sending a transmission to its acquirer including a request for a transaction against one account to which the merchant receives a denial or prior to receiving such a denial. The merchant then requests information from the financial service provider who responds by sending the requested information, upon which the merchant determines whether to extend the credit. When the method is performed by a financial service provider, in response to the denial received by one merchant or prior to such denial, the financial service provider receives a transmission from the merchant including a request for information about the account. In response, the financial service provider sends the merchant the requested information.