The present invention provides a charging system which enables a customer to select an access method from plural kinds of access service including access service with advertisements, when the customer uses the Internet. ;Internet access information, and information on a method for displaying information for charging and a charging method associated with Internet access are transmitted to an information terminal (101) of the customer, from a terminal server (105) to which the information terminal (101) is connected through modems (102), (104) and a public network (103). The customer selects desired information from the transmitted information.
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