This is a reference translation of the Japanese version. If they differ, the Japanese version prevails.
| Seller | Yamavista Co., Ltd. |
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| Representative | 劉峙瑛 (Representative Director) |
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| Address | Akasaka Residential Hotel 511, 9-1-7 Akasaka, Minato-ku, Tokyo 107-0052, Japan |
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| Phone | +81-3-4362-8858 |
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| Email | support@mantenshogun.com |
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| Contact | Contact form |
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| Price | Paid plan: ¥980 per month or ¥9,800 per year per child (tax included). Two children are charged for two. A 14-day free trial starts as soon as you sign up (once per family, no credit card needed). If you do not subscribe, the trial simply ends: nothing is charged automatically. Trial practice and the Math Level Check are free. |
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| Other costs | Internet connection charges are paid by the customer. |
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| Payment method | The methods shown on the sign-up screen (such as credit card), processed on the pages of the payment service Stripe. |
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| Payment timing | If you subscribe during the free trial, the first payment is taken on the day the trial ends (at subscription if less than 2 days are left); if you subscribe after the trial, at subscription. After that the plan renews automatically every month or year and is charged on each renewal date. When you add a child we show the new amount first; it applies from the next invoice (the rest of the current term is added pro rata). |
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| Delivery | Available right after sign-up is completed. |
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| Returns and cancellation | Cancel online at any time from “Payment & cancellation” on the parent page. Cancelling a subscription during the free trial costs nothing. A trial without a subscription simply ends with nothing to do. After cancelling, nothing is charged from the next renewal date and you can use the Service until the end of the current term. Because this is a digital service, payments already made are generally non-refundable (including pro-rated refunds). |
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| Requirements | A current web browser (Safari, Chrome, Edge, etc.) |
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