The present invention and the information such as purchase history held by retailers and service providers, by utilizing the GPS information of the mobile carrier or the like is held, the user of the mobile terminal corresponding to a purchaser that utilizes a purchase or service goods to identify to. A such as is held by retailers and service providers, the position information of stores during use has been identified of purchase or when servicing of goods, taken from the purchasing information of each customer, mobile carriers, etc. GPS function of the mobile terminal By comparing the location information of the user of the acquired mobile terminal when retrieved is specified by a buyer is a customer, such as retailers, it can be identified as a user of the mobile terminal such as a cellular phone. This purchase information multiple retailers and service providers has been collected for the same person, one of a and be managed as a purchase history that integrates the user of the mobile terminal, the destination e-mail address to a mobile carrier or the like is grasped it is possible to transmit the recommendation information and the like as. [Selection Figure] Figure 13
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