PURCHASE SUPPORT SERVER, PURCHASE SUPPORT METHOD, PURCHASE SUPPORT PROGRAM, AND COMPUTER-READABLE RECORDING MEDIUM FOR RECORDING SAID PROGRAM

A mediation server (30) includes a second request receiving unit (35) that receives first store information for identifying a store visited by a user as a visited store and second store information for identifying a designated store designated as a place to purchase an item recognized by the user at the visited store from a mobile terminal (10) of the user, a response information generating unit (36) that compares the first and second store information and determines whether the visited store and the designated store match, and generates bargaining information indicating a specified service offered for the item by the visited store when the two stores do not match, and a response information transmission unit (37) that transmits the generated bargaining information to the mobile terminal (10).