Topic When purchase request from the many user concentrates, the technology which prevents the occurrence of the obstacle with the increase of load is desired. SolutionsWhen credit request is received after the timing of the renewal of the available amount decision section and the available amount which decide the available amount after the timing of the renewal of the available amount, the credit system which has with the credit response transmission section which transmits the credit response for credit request on the basis of the available amount which the available amount decision section decides, offers from timing of renewal of available amount before. Selective figure Figure 5
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