Shipping policy

1. Product Delivery Methods

1. Automatic delivery mode: All e-book products on the Site are delivered automatically online. There are no physical packages, no shipping fees, and offline pickup or express delivery services are not available.
2. Dual delivery channels
   • Email delivery: After the order is paid successfully and the payment is confirmed by the system, the download link, access code and user guide of the product will be automatically sent to the email address provided when placing the order.
   • Account dashboard delivery: Registered users can log in to their account on the Site and download the product file directly in My Orders → Corresponding Order Details.
3. File formats: The specific format of the product is subject to the description on the product detail page. Common formats include PDF, EPUB, MOBI, TXT, etc. Physical printed versions are not provided by default.

2. Delivery Timeframe & Inquiry

1. Standard timeframe: After successful payment and system verification, the automatic delivery will be completed within 1–5 minutes, and the downloadable content will be pushed to the reserved email and order dashboard simultaneously.
2. Delay scenarios: In case of special circumstances such as payment gateway callback delay, routine system maintenance or network fluctuation, the delivery may be postponed up to 30 minutes. If you do not receive the delivery content after 1 hour, you can contact customer service for verification.
3. Self-troubleshooting guide
   • First check the Spam or Promotions folder of your email, as some email service providers may misclassify automated system emails.
   • Log in to your account on the Site and go to My Orders to confirm the order status and download entry.
   • If you still cannot obtain the product after troubleshooting, please contact customer service with your order number for manual processing.

3. Receipt & Acceptance Rules

1. Users are obliged to fill in accurate and valid email address and contact information. The Site shall not be liable for delivery failure caused by user reasons such as incorrect email address, email rejection or cancellation, or wrong personal information.
2. Please complete the download and verification within 24 hours after receiving the download link, and confirm that the content, format and length of the file are consistent with the product description, with no damage, unopenable file or missing content.
3. If you find any quality problems with the product, please contact customer service within 7 calendar days after receipt, and provide order screenshots, error screenshots and content comparison certificates. After verification, we will reissue or resolve the issue as soon as possible.

4. Refund Policy (Special Rules for Digital Products)

1. After successful payment, a full refund can be applied for within 7 calendar days of placing the order if the product file has not been downloaded or obtained through any channel.
2. If the product file has been downloaded but is verified to have quality problems (damaged file, serious inconsistency between content and product description, missing core content), you can choose to get a corrected version for free, or apply for a full refund.
3. The Site reserves the right to reject refund applications for products that have been downloaded with no quality problems, if the application is made for personal reasons (such as unwillingness to purchase, format incompatibility, unmet expectations, unsupported devices, etc.).
4. The refund will be returned to the original payment account. The arrival time is subject to the rules of the corresponding payment channel, usually 1–7 working days.

5. Technical Support & Issue Resolution

1. Support scope: Product-related issues such as invalid download links, failed file decompression, missing pages, and basic usage guidance for file formats.
2. Response time: Responses will be provided within 24 hours on working days. Requests on non-working days and statutory holidays will be processed on the next working day.
3. Support disclaimer: For usage problems caused by the user's device system, incompatible reading software or personal misoperation, the Site can provide operation guidance, but does not guarantee compatibility with all devices and software environments.

6. Disclaimer

1. The Site shall not be directly liable for failure to download or read the product caused by reasons not attributable to the Site, such as user network failure, device failure, email service provider interception, or personal misoperation. We can assist in providing solutions.
2. The Site only provides the e-book product file itself, and does not include additional services such as reading devices, printing services, or offline training.
3. All e-book products are for the personal learning use of the purchaser only. Secondary dissemination, resale, commercial use or pirated distribution is prohibited, and violators will be held legally liable.

7. Policy Updates & Contact Information

1. The Site reserves the right to revise this policy in accordance with business operation and regulatory requirements. The revised policy will be posted on the website and take effect immediately. Users who place orders after the policy update are deemed to accept all updated terms.
2. If you have any questions about this policy, you can contact us through the following channels:
   • Customer Support Email: yefanghuaqian@outlook.com
   • Live Chat: Customer service entry at the bottom right corner of the website (Working hours: Monday to Friday 09:00–18:00 in UTC+8)