To provide a control unit and the like that maintains the interest of users in an event, and grants a privilege to the users to motivate them to go to the site of the event again using a questionnaire survey.

A game control unit, which is communicably connected to a user terminal, obtains terminal location information indicating the location of the user terminal in the real world; determines whether the user terminal is located in a predetermined area where a predetermined event in the real world is held, during an event period when the predetermined event is being held. If it is determined that the user terminal is located in the predetermined area during the event period, the game control unit requires the user terminal to answer a questionnaire about the predetermined event; and, if obtaining an answer, acquires the degree of the satisfaction of a user with the predetermined event on the basis of the content of the answer, and grants a privilege to the user depending on the acquired degree of satisfaction.