Refund Policy

Once a user completes payment of subscription fees, it is considered that the user has fully understood and accepted the service content and usage rules of this product. Based on the nature of virtual products in subscription services and data processing costs, except as otherwise provided by laws and regulations, whether due to personal reasons of the user (including but not limited to early termination of subscription, actual non-use of services, changes in needs, etc.) or other circumstances not caused by platform technical failures, paid subscription fees will not be refunded.

We recommend that users fully understand our service features before subscribing. If you have questions, you can learn more through our free trial or by contacting customer service.

To help users better understand our services, we provide free trial functionality. We strongly recommend that users before paid subscription:

• Fully experience the free trial features
• Understand the core functions and usage methods of the service
• Confirm that the service meets your learning needs
• Contact customer service for consultation if you have any questions

The following situations are not eligible for refunds:

• Cancellation requests due to personal reasons
• Non-use or low usage frequency
• Changes in learning needs or no longer requiring the service
• Misunderstanding of service features or unmet expectations
• Device compatibility or network issues
• Forgetting to cancel automatic renewal

Technical Failures

If our technical failures cause long-term inability to use the service normally, we will provide extended service periods or other compensation plans based on specific circumstances.

Account Security Issues

If your account has security issues or unauthorized payments occur, please contact us immediately, and we will assist you in resolving related problems.

Legal Requirements

In cases where laws and regulations clearly require it, we will handle refund matters according to relevant regulations.

If you have any questions about the service or need help, please contact us:

1. Send an email to: erin.cui88@gmail.com
2. Describe the problem you encountered in detail
3. Provide your account information (username or registered email)
4. We will reply within 1-2 business days

To avoid unnecessary costs, please note:

• Subscription services will automatically renew, please cancel before expiration if you no longer need to continue using
• You can manage subscription status in account settings at any time
• After canceling subscription, service will stop after the current paid period ends
• Paid fees will not be refunded due to subscription cancellation

The final interpretation right of this refund policy belongs to Feynman Learning Assistant. We reserve the right to modify this policy within the scope permitted by law, and any modifications will be notified to users through website announcements or email notifications.