A point applying unit associates a predetermined point according to a type of regular purchase contract with user identification information according to a contractual user, for each predetermined period; a number-of-points information storage unit stores number-of-points information representing the number of points for each reward, in a plurality of providable rewards; a selection information acquisition unit retrieves selection information that is associated with the user identification information and represents a selected reward of the plurality of rewards; and a reward management unit enables the selected reward to be used, based on the user identification information, in a case where the total number of points are set by the selection information retrieved by the selection information acquisition unit and the number-of-points information in the number-of-points information storage unit and are associated with the selected reward has a predetermined relationship with the predetermined point associated by the point applying unit.