Terms of service

Last Updated: September 2025

Welcome to Mahjongdeck (“we,” “us,” or “our”). These Terms of Service (“Terms”) govern your access to and use of our website, products, and services (collectively, the “Services”). By visiting our website or making a purchase, you agree to be bound by these Terms. Please read them carefully before using the Services.

1. Eligibility

By using the Services, you confirm that you are at least 18 years old (or the age of majority in your jurisdiction) and have the legal capacity to enter into a binding agreement.

2. Accounts

  • You may be required to create an account to use certain features.

  • You are responsible for maintaining the confidentiality of your login credentials.

  • You agree to provide accurate and complete information and to update it as needed.

3. Orders and Payments

  • All prices displayed are in U.S. dollars (unless otherwise stated) and are subject to change without notice.

  • We reserve the right to refuse or cancel any order at our discretion, including due to pricing errors, product availability, or suspected fraud.

  • Payment must be made in full at the time of purchase. We currently accept PayPal and Venmo.

4. Shipping and Delivery

  • Shipping times are estimates only and may vary due to circumstances beyond our control.

  • Risk of loss passes to you once the order has been shipped.

  • Customers are responsible for providing accurate shipping details.

5. Returns and Refunds

  • We accept returns and exchanges in accordance with our Return Policy, available on our website.

  • Items must be returned in original condition unless defective or damaged upon arrival.

6. Intellectual Property

  • All content on the Services, including text, graphics, logos, images, and software, is owned by or licensed to Mahjongdeck and is protected by intellectual property laws.

  • You may not copy, distribute, modify, or use our content without prior written consent.

7. Prohibited Conduct

You agree not to:

  • Use the Services for unlawful purposes.

  • Interfere with or disrupt the functionality of the Services.

  • Attempt to gain unauthorized access to our systems or data.

8. Limitation of Liability

To the fullest extent permitted by law:

  • We are not liable for indirect, incidental, or consequential damages.

  • Our total liability to you for any claim shall not exceed the amount you paid for the applicable order.

9. Disclaimer of Warranties

The Services are provided “as is” and “as available.” We make no warranties or representations regarding uninterrupted or error-free operation.

10. Changes to Terms

We may update these Terms from time to time. The “Last Updated” date will reflect the most recent revision. Continued use of the Services after changes means you accept the revised Terms.

11. Governing Law

These Terms shall be governed by and construed under the laws of the State of Delaware, USA, without regard to conflict of law principles.

12. Contact Information

For questions about these Terms of Service, please contact us:

  • Company Name: Shanghai Qianwang Business Information Consulting Co., Ltd.

  • Email: service@Mahjongdeck.com

  • Address: Room 1602A-2110, No. 11, Lane 803, Shuangcheng Road, Baoshan District, Shanghai

  • Customer Service Hours: Monday to Friday, 9:00 AM – 6:00 PM (EST)