Refund Policy

The legal entity responsible for providing PaperLens paid services, activating paid entitlements, and handling order support under this Refund Policy is Yisigao (Beijing) Technology Co., Ltd.

PaperLens, LitLink, and litlink.cc are product, brand, and website names operated by Yisigao (Beijing) Technology Co., Ltd. If an order is processed by Paddle, Paddle.com or its affiliates may act as the Merchant of Record for that specific payment transaction and may execute payment, tax, and refund processing.

Paid access was not activated after successful payment and we cannot activate or fix it within a reasonable time.

There was duplicate payment, incorrect amount, order-creation error, or another abnormal transaction confirmed by the payment provider.

You request a refund within 14 days of purchase and the relevant entitlement has not been substantially used, transferred, abused, or used in violation of the Terms of Service.

Applicable law, a payment provider, or Paddle as Merchant of Record requires a refund under its rules.

The refund window has passed, or the current billing period, AI quota, or paid entitlement has been substantially used.

The issue is caused by personal device setup, browser configuration, institutional network, publisher access restrictions, third-party website limitations, or failure to read product descriptions.

The account shows sharing, resale, malicious registration, attacks, limit bypassing, unauthorized scraping, or another Terms violation.

Free trials, gift entitlements, coupons, promotional credits, or benefits that did not require payment.

Submit a request from the order record in the account portal, or email customer@litlink.tech.

Include your account email, order ID, payment channel, payment time, reason, and relevant screenshots. Do not send full card numbers, passwords, or unnecessary sensitive information.

We usually acknowledge refund requests within 5 business days. Complex orders, cross-border payments, risk review, or disputes may take longer.

Refunds are usually returned to the original payment method. Arrival time for Paddle, card payments, or other international payment methods is controlled by the relevant payment provider.

If an order was processed by Paddle, Paddle.com or its affiliates may act as the Merchant of Record and handle payment-related customer service, taxes, and refund execution.

After a refund is completed, the related paid access, AI quota, gift months, student-price benefits, and promotional benefits may be revoked or adjusted.

If automatic renewal or subscription plans become available, you may cancel renewal through the account portal or the payment-provider entry point.

Cancellation stops future charges but usually does not automatically refund an already-started billing period unless this policy or applicable law requires otherwise.

Cancellation and refund are different actions. If you need a refund, submit a refund request under this policy.

If you believe a payment was unauthorized, incorrectly charged, or abnormal, contact us or the payment provider first so the order and activation status can be checked quickly.

Abusive chargebacks, false disputes, or refund abuse may result in account restrictions, entitlement suspension, or order cancellation.