Terms & Conditions
Last Updated January 10, 2026 | Version: 1.2 Global
These terms and conditions (“Terms of Use”) apply to your use of this website, including any subdomains and systems (the 'Website'). This is a legal agreement. It grants you certain rights and imposes certain obligations on you in connection with your use of the Website. You should read this document carefully.
General
These Terms of Use, together with the documents referred to herein, explain the terms and conditions that apply to your use of the Website, its content and any of its related subdomains. By choosing to access and use the Website you are accepting and agreeing to be bound by these Terms of Use. If you do not agree with these Terms of Use you should not use the Website.
This Website is not directed at children under the age of 18. If you are under the age of 18 you should not use this Website.
Our Website uses cookies to distinguish you from other users of our Website. We use cookies in accordance with our Cookies Policy.
The Website will be made available to you free of charge in consideration of your acceptance of these Terms of Use. We reserve the right to change these Terms of Use at any time, without providing you with any notice. It is your responsibility to check them regularly or each time before you use the Website.
Privacy and Data Protection
Please read our Privacy Policy to help you understand how we use your personal data and protect your privacy. Whenever you provide Keystone with personal information, we will use it in accordance with our Privacy Policy.
Purchases & Payments
All prices are listed in the US dollar (symbol: $; currency code: USD) and may be subject to VAT or other applicable taxes.
Payment is processed securely via our third-party payment providers like 2Checkout, Card2Card (available only to customers located in the Republic of Azerbaijan). You are responsible for providing accurate billing details.
Security
You should be aware that the Internet is not a completely reliable transmission medium. If you choose to send any electronic communications to us, you do so at your own risk. We cannot guarantee that such communications will not be intercepted or changed or that they will reach the intended recipient safely. We assume no liability for any disclosure of data due to errors in transmission, unauthorised third party access or other acts of third parties, or acts or missions beyond our reasonable control.
Liability
Nothing in these Terms of Use shall limit our liability for (i) death or personal injury caused by negligence; (ii) fraud or fraudulent misrepresentation; and/or (iii) any liability which is not permitted or excluded under applicable law.
It is a condition of our allowing you free access to the Website that neither we nor any of our employees, directors or members will be liable to you, whether in tort (including negligence), breach of contract, misrepresentation or otherwise howsoever, for any losses, damages, costs or expenses of whatever nature (including, without limitation, any consequential, indirect or unforeseeable loss, or loss of goodwill, business opportunity, anticipated savings or profit, or loss of data incurred or suffered by you or any third party arising out of or in connection with (i) your use of the Website or any materials provided on or downloaded from the Website; (ii) any computer virus transmitted through the Website; (iii) your inability to use the Website at any time and any error in the provision of the Website; (iv) your use of e-mail communications to contact us; or (v) any inaccurate information or opinions published on the Website or your reliance thereon.
Governing Law
These Terms of Use are governed by the laws of the Republic of Azerbaijan. You agree that any disputes relating to these Terms of Use shall be subject to the exclusive jurisdiction of the Azerbaijani courts.
These terms of use and any document expressly referred to in them constitute the whole agreement between us and supersede any previous arrangement, understanding, terms or agreement relating to the use of the Website.