A system which improves convenience on the user side and contributes to a cost reduction on the sales shop side is provided. A sales shop 2 manages requested contents to the users by a notice information management unit (22) in correspondence to a URL provided for each user. A requested contents notice unit (23) notifies the user of the requested contents managed by the notice information management unit (22) and the user's URL by Email. When there is an access to the URL in the Email from the user and a paying instruction is issued with respect to the requested contents, a settlement unit (24) makes a settlement on a network (5).