Patent ID: 7729925

Claim:
A method for establishing a link between a server of a primary merchant and a server of an ancillary merchant and exchanging client discount information on that link, the method comprising: receiving a purchase request at a transaction privacy clearing house (TPCH) server from the server of the primary merchant, wherein the purchase request originated from a client of the primary merchant; selecting the ancillary merchant by the TPCH server that can fulfill the purchase request; establishing a link for an exchange of said client discount information automatically between the server of the primary merchant and a server of the ancillary merchant through the TPCH; said server of the primary merchant completes the purchase request with the client discount information; and said server of the primary merchant uses the established link and automatically exchanges client discount information with the server of the selected ancillary merchant through the TPCH without interaction of the client, wherein the selected ancillary merchant fulfills the purchase request.