Abstract: A purchasing service providing method includes transmitting, to a second computer, a request for payment delegation in which payment of a price of a product or a service to be purchased through a first computer is delegated to the second computer; receiving a payment request for the payment of the price from the first computer, the payment request including information of a name and the price of the product or the service; transmitting the payment request to the second computer, and conducting processing for the payment using funds when an instruction is received from the second computer, when a permission notification is received from the second computer and the price is more than a credit limit; and conducting the processing using the funds and updating the credit limit based on the price, when the permission notification is received and the price is less than or equal to the credit limit.

Abstract: A mail creation supporting device includes a processor and a memory, wherein the processor is configured to execute a process including acquiring attribute information stored in the memory to correspond to a destination of an electronic mail message in process of creation and associated with the destination, specifying a space area in a text input area of the electronic mail message, and displaying the attribute information on the specified space area.