E-books are digital products. Once the purchase is completed and a download link is sent, the order is deemed completed by the system. Therefore, e-book products do not support returns or refunds under normal circumstances. We encourage you to confirm the content description, format and other relevant information of the e-book you want before purchasing.

If you encounter any technical issues while downloading the eBook, please contact our support team promptly. We’ll help you resolve your issues and ensure you have smooth access to your purchased content. Please contact us via:

Email: liyucheng746@gmail.com
Real-time chat: Click the chat icon in the lower right corner of the page to contact online customer service instantly.

If you make repeated payments or make mistakes when placing an order, please contact us as soon as possible and provide relevant order details (such as order number, purchase time, etc.). After verifying your order, we will try our best to assist you with the refund and arrange a refund if necessary.

In certain circumstances, such as the e-book file is damaged or the content provided does not match the description, we will provide replacement or refund services as appropriate. Please contact our customer service team within 30 days of purchase so that we can handle your request promptly.

If you did not register an account after payment and cannot access the download link, or the confirmation email is not received, please check your spam folder or contact our support team to resend the download link. We recommend that you provide a valid email address when purchasing to ensure smooth receipt of order information.

We are committed to providing you with high-quality e-book content and a smooth download experience. If you have any questions, please feel free to contact us. Our support team will do their best to assist you in resolving your issue and ensuring your satisfaction.