Refund Policy

Last Updated: 2026-09-30

This Refund Policy is part of, and incorporated by reference into, the Terms of Service of Zerith LLC, a limited liability company organized under the laws of the State of Wyoming, United States ("Zerith," "we," "us," or "our"), which operates the jmds.dev website and the API gateway at api.jmds.dev (the "Service"). Capitalized terms not defined here have the meaning given in the Terms of Service. Where this Policy is also published in Chinese, the English version controls in case of any inconsistency.

1. What Can Be Refunded

• Unused top-up balance. Balance you purchased by top-up and have not yet used may be refunded, up to the amount of that top-up and never more than your current balance. Credits already consumed are non-refundable.
• Subscriptions may be refunded as described in Section 3.
• A refund is always calculated per payment order and returned to the original payment method only.

2. What Cannot Be Refunded

• Credits that have already been consumed.
• Balance that did not come from your own payment, including sign-up gifts, promotional credit, redeem codes, and balance transferred from referral rebates.
• Extra-usage packs, add-on services, and the newcomer trial plan.
• Any balance or purchase associated with an account restricted, suspended, or terminated for violating the Terms of Service or the Acceptable Use Policy; such balance is forfeited.
• Any payment for which a chargeback or payment dispute has been filed. Filing a chargeback instead of requesting a refund results in suspension of the account.

3. How Refunds Are Calculated

Payment channel fees are borne by you. Payment processors do not return their processing fees when a payment is refunded. We deduct the fee the processor actually charged on your payment (for a partial refund, the same proportion of it) from the refund. Any service fee we added at checkout is part of what you paid and is refunded proportionally.

Top-up refunds. Refund = (amount paid − processor fee) × (credits refunded ÷ credits received from that order).

Subscription refunds. Subscriptions are priced well below the official list price of the models they give access to, so a refund recovers that discount. For the subscription term being refunded:

Refund = amount paid − used value − processor fee − unrecoverable bonus, and never less than zero,

where used value is the greater of (a) the term's usage re-priced at the models' official US-dollar list prices, and (b) the amount paid × days elapsed ÷ days in the term. A term that has not started yet has zero used value. When US-dollar prices are converted to Chinese yuan, the exchange rate published on the Service at the time of the refund is used.

If the plan included bonus balance, the bonus is first taken back from your balance; any part already spent is valued at official list price and deducted from the refund. A subscription purchased with account balance is refunded to your balance under the same rules, with no processor fee. A refunded subscription term ends immediately.

4. Time Limit

Refunds must be requested within ninety (90) days of payment. Requests after that period are not accepted.

5. How to Request a Refund

• Full refund of an unused top-up: use the "Request refund" button on the order in your account's order list. The dialog shows an estimate of the amount you will receive.
• Partial top-up refunds and all subscription refunds: open a support ticket in your account, or email [email protected] with your account email and the order number.

All requests are reviewed. We may require proof of payment and identity verification, and requests are subject to fraud and anti-money-laundering review. We may decline requests we reasonably believe to be fraudulent or abusive.

6. Non-Waivable Rights

Nothing in this Policy limits any right you have under applicable law that cannot be waived by contract.

7. Contact

Zerith LLC (operator of jmds.dev) Email: [email protected]

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以下为中文译本，如与英文版本有歧义，以英文版本为准。

退款政策（中文）

最后更新：2026-09-30

本退款政策是 Zerith LLC（一家依美国怀俄明州法律设立的有限责任公司，下称“Zerith”或“我们”）服务条款的组成部分。Zerith 运营 jmds.dev 网站及 api.jmds.dev API 网关（下称“本服务”）。未在此定义的术语，以服务条款中的含义为准。本政策中英文版本如有歧义，以英文版本为准。

1. 可以退款的范围

• 未使用的充值余额。 你通过充值购买、且尚未使用的余额可以退款。退款以该笔充值金额为上限，且不超过你当前的余额。已消耗的额度不予退款。
• 订阅按第 3 条规则退款。
• 退款一律按支付订单计算，并只原路退回。

2. 不予退款的情形

• 已经消耗的额度。
• 非本人付款得来的余额，包括注册赠送、活动赠送、兑换码以及由邀请返利转入的余额。
• 加油包、附加服务、新人特惠套餐。
• 因违反服务条款或可接受使用政策而被限制、暂停或终止的账户，其余额及购买项不予退款，余额作废。
• 已发起拒付（chargeback）或支付争议的付款。不申请退款而直接发起拒付的，账户将被封禁。

3. 退款金额如何计算

支付渠道手续费由你承担。 支付机构在退款时不会退还已收取的手续费。我们会从退款中扣除该笔付款实际被收取的手续费（部分退款按相同比例扣除）。下单时我们加收的服务费属于你的实付金额，会按比例退还。

充值退款。 退款金额 =（实付金额 − 渠道手续费）×（本次退还的积分 ÷ 该订单到账积分）。

订阅退款。 订阅的售价远低于其所含模型的官方标价，因此退款时会收回这部分优惠。对被退款的订阅期：

退款金额 = 实付金额 − 已用价值 − 渠道手续费 − 无法收回的赠送，最低为 0。

其中已用价值取以下两者中较大的一个：(a) 本期用量按模型官方美元标价重新计算的金额；(b) 实付金额 × 已过天数 ÷ 本期总天数。尚未开始的订阅期，已用价值为 0。美元价格折算为人民币时，按退款时本服务公布的汇率计算。

套餐附带赠送余额的，先从你的余额中收回赠送部分；已经花掉、无法收回的部分，按官方标价折算后从退款中扣除。使用账户余额购买的订阅，按相同规则退回余额，不扣手续费。订阅期退款后立即终止。

4. 退款时限

须在支付后九十（90）日内申请退款，逾期不予受理。

5. 如何申请

• 未使用充值的整单退款： 在账户的“我的订单”中点击该订单的“申请退款”，弹窗会显示预计退回金额。
• 充值部分退款及所有订阅退款： 在账户内提交工单，或发送邮件至 [email protected]，并注明账户邮箱与订单号。

所有申请均需审核。我们可能要求你提供付款凭证并进行身份验证；申请还须经过反欺诈与反洗钱审查。对于我们合理认为属于欺诈或滥用的申请，我们可以拒绝。

6. 不可放弃的法定权利

本政策不限制你依适用法律享有的、不得以合同排除的权利。

7. 联系方式

Zerith LLC（jmds.dev 运营方） 邮箱：[email protected]