| 摘要 |
<p>PROBLEM TO BE SOLVED: To perform failed adjustment processing by performing failed adjustment processing when adjustment processing using a portable recording medium fails and the portable recording medium is used again.SOLUTION: Adjustment processing is performed by using amount information stored in the portable recording medium to update the amount information by acquiring user identification information for identifying a user stored in the portable recording medium and the amount information, and executing predetermined processing, and if the update processing fails, unadjustment information showing that adjustment processing is not performed in association with the user identification information is stored. If the unadjustment information is stored in association with the user identification information in the case that the user identification information stored in the portable recording medium is acquired, adjustment processing is performed by the amount information stored in the portable recording medium to update the amount information.</p> |
