| Seller | Booklens Operations Office |
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| Address | Tokyo, Japan. Full address will be provided without delay upon request. |
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| Contact | support@flowzenn.com |
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| Sales price | Shown on each purchase page, from ¥100. |
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| Additional fees | Internet connection fees and other telecommunications charges are borne by the customer. |
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| Payment method | iOS in-app purchase (Apple ID) and Android in-app purchase (Google Play). |
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| Delivery timing | Credits are granted immediately after payment is completed. |
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| Returns and cancellations | Refunds and cancellations for in-app purchases are handled under Apple App Store, Google Play, applicable law, and each store’s processing rules. |
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