支付成功不一定代表额度已入账。请先在账户中心核对套餐、余额和支付申请状态；若已付款但未履约，请保留 Infini Order ID 或 FastSpring Order ID、付款邮箱、金额及付款时间，通过网站公示的客服渠道联系我们。请勿发送完整银行卡号、密码或验证码。

重复扣款、金额错误、已付款但未获得相应权益，或因我们原因导致服务无法交付时，可申请核查并在适当情况下退款或补足权益。我们会核对支付平台订单状态、账户入账和实际消耗后作出处理；支付平台已自动退款的订单不会再次退款。

周期套餐一经履约即开始 28 天周期，每 7 天刷新一次额度；未用完的周额度不结转，也不能兑换现金。按量余额用于已发生的模型调用。仅因改变主意、未使用或未用完而申请退款，一般不予支持；但服务未履约、错误扣款、重大服务问题或适用法律另有要求的情形不受此限制。

若购买新套餐替换现有套餐，请在付款前确认；误购或重复购买仍可提交订单核查，我们会结合实际履约和消耗情况处理。

经核实符合退款条件的金额，原则上通过原支付渠道退回；到账时间取决于 Infini、FastSpring、付款方式及发卡或收款机构。若原渠道无法退款，我们会与您确认可行的替代方式。退款不影响您依法享有的其他救济权利。

请尽早提交订单号和问题说明，避免重复提交或由他人代为提供敏感支付资料。我们不会要求您提供密码、完整卡号或一次性验证码。若您认为处理结果有误，可补充证据请求复核。

A successful payment does not always mean credit has been applied. Check your plan, balance, and payment-request status in the account center. If you paid but did not receive the purchase, keep the Infini or FastSpring Order ID, payer email, amount, and payment time and contact us through the support channel published on the site. Never send a full card number, password, or one-time code.

You may request a review for duplicate or incorrect charges, a paid order that was not fulfilled, or a service we could not deliver due to our fault. Where appropriate, we will refund or provide the missing benefit after checking the payment-provider order, account credit, and actual usage. An order already automatically refunded by the payment provider will not be refunded twice.

A fulfilled plan starts its 28-day period immediately and refreshes allowance every 7 days. Unused weekly allowance does not roll over or convert to cash. Usage balance pays for model calls already made. We generally do not refund purchases solely because you changed your mind or left credit unused. This does not limit refunds for non-fulfillment, incorrect charges, material service problems, or rights provided by applicable law.

A new plan can replace an active one. Please check before paying. You can still submit mistaken or duplicate purchases for review; we will consider fulfillment and actual usage.

Approved refunds will normally go back through the original payment method. Arrival time depends on Infini or FastSpring, the payment method, and the issuing or receiving institution. If that route is unavailable, we will agree on a feasible alternative with you. This policy does not limit other remedies available under applicable law.

Send the order ID and a description promptly. Do not submit duplicate requests or let others provide sensitive payment data for you. We will never ask for your password, full card number, or one-time code. If you disagree with an outcome, you may provide further evidence for review.