Payment system, method for providing information, and program

A payment system and method that changes a degree of disclosure of personal information provided for a store, including a settlement server that acquires a disclosure level of personal information when an electronic settlement from a user terminal to a store is detected, the disclosure level being set by a payer at present. A picker picks out a new disclosure level different from the acquired present disclosure level. A presenter presents first information about the present disclosure level and second information about the new disclosure level in a selectable manner at the user terminal. In accordance with a selection result in the user terminal, a provider provides the store with partial information extracted from the personal information according to the selected disclosure level. Then, an updater updates the disclosure level to the new disclosure level when the selection result is the second information.