1. Our service and eligibility
The mahjchina team (“we”) provides Mahjong lessons, practice tools and online games. Public lessons do not require an account. Online game accounts are for people aged 18 or above, or the higher age required where they live. You must comply with applicable law and must not use the service where it is prohibited.
2. Accounts and security
You may sign in using a supported third-party account. Keep your account secure and provide accurate, lawful information. Do not impersonate others or sell or transfer accounts. Contact us promptly if you suspect unauthorized access. After using a shared device, sign out of the game and the relevant third-party account.
3. Acceptable use and fair play
Follow the rules shown for each game, event and room. Some games may include computer-controlled players. Lessons and calculators follow the rules described on this site, which may differ from local or tournament rules. Cheating, collusion, exploiting bugs, disrupting the service, harassment and illegal content are prohibited. You may contact us to request a review of an enforcement decision.
4. Virtual items and charges
Coins, diamonds and other virtual items are for use within this service only. They are not money and cannot be cashed out, exchanged for cash or traded outside the service. Cash gambling is prohibited. Conditions, amounts consumed and relevant game rules are shown before use. Paid items and purchase channels depend on the options offered in the interface; confirm the product, price and conditions before ordering. Purchase support and refunds follow applicable law, channel rules and our refund policy, without limiting statutory consumer rights.
5. Intellectual property and your content
The software, text, images and other service content belong to us or their respective rights holders. Except as permitted by law or authorization, you may not copy, sell or infringe those rights. You retain your rights in content you submit and give us the limited permission needed to display your profile, provide the service and handle feedback. You must have the right to provide that content.
6. Changes, suspension and termination
We may update, suspend or discontinue parts of the service for maintenance, security or product changes, with advance notice where reasonably possible. We may apply necessary and proportionate restrictions for violations of these Terms or risks to service security. You may stop using the service at any time and contact us to request account closure. Signing out or uninstalling an app does not close your account.
7. Responsibility and disputes
Network, device or third-party failures may cause interruptions or delayed data. We will take reasonable steps to address confirmed service problems, but cannot guarantee uninterrupted or error-free service. Please contact us to seek a resolution if a dispute arises. These Terms do not exclude or limit liability that cannot lawfully be excluded or limited, or affect mandatory consumer protections or your right to complain or bring legal proceedings.
8. Updates and contact
We may update these Terms and will display the revision date. Material changes affecting your rights or obligations will be notified through the website or app, with renewed consent where required by law. For questions, complaints or account closure requests, email support@mahjchina.com or use the website feedback form.
9. Purchases and payment support
Optional paid items, quantities, prices and conditions are shown before purchase. Products and payment methods may vary by platform, region or channel; review the information when confirming your order. Confirmed purchases are delivered to the ordering game account. See our refund policy for purchase support and refund procedures. Later price changes do not alter the price or quantity of confirmed orders.