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Terms of Service

Last updated: February 2026

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提示:本页主要用于法律条款展示,中文仅作辅助理解,不替代英文原文。

Agreement to Terms

By accessing www.25maths.com you agree to these terms.

If you disagree with any part of these terms, please discontinue use of the website immediately.

Digital Products License

  • Single-user license for personal study or classroom use
  • Teachers may print and distribute to their own students
  • You may NOT resell, redistribute, or share files digitally
  • You may NOT upload to file-sharing platforms or websites
  • You may NOT claim the content as your own work

School & Institutional Licensing

  • Schools and institutions require a separate bulk license
  • Contact support@25maths.com for institutional pricing
  • Bulk licenses permit distribution within the licensed institution only

Pricing and Payment

  • All prices are listed in USD ($)
  • Payment is processed securely through Payhip
  • Prices may change at any time; existing purchases are unaffected
  • Digital delivery is instant after successful payment

Refund Policy

  • Due to the nature of digital products, all sales are final and we are unable to offer refunds once a purchase is completed
  • We stand behind the quality of every resource we create. If you find any errors, formatting issues, or content that doesn't match the product description, please reach out to support@25maths.com — we'll make it right
  • We encourage you to explore our free resources before purchasing, so you can experience the quality and style of our materials first-hand

Intellectual Property

  • Exam questions and syllabus content remain the intellectual property of their respective examination boards (Cambridge Assessment International Education, Pearson Edexcel, etc.)
  • All original content created by 25Maths — including LaTeX typesetting, bilingual translations, visual designs, TikZ illustrations, layout formatting, and pedagogical organisation — is copyright © 2026 25Maths. All rights reserved
  • The digital source files (.tex, .sty, .cls) used to produce our resources are proprietary and are not included in any product download
  • Unauthorized reproduction, redistribution, or derivative use of 25Maths original content is prohibited

Disclaimer

  • Resources are supplementary study materials, not a substitute for classroom teaching
  • While we strive for accuracy, we cannot guarantee completely error-free content
  • Please report any errors to support@25maths.com for prompt correction

Limitation of Liability

  • 25Maths is not liable for examination outcomes
  • Maximum liability is limited to the purchase price of the product
  • We provide resources "as is" for educational purposes

Changes to Terms

  • We may update these terms at any time
  • Continued use of the website constitutes acceptance of updated terms
  • Please check this page periodically for changes

Contact

For questions about these terms, contact us at support@25maths.com

Website: www.25maths.com