Contact Us

We're here to help. Reach out to the Keystone Digital team for questions, support, or partnership inquiries.

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Our Office

123 Tverskaya Street
Moscow, Russia, 125009

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Our Location

Contact FAQs

What are your business hours?

Our office is open from Monday to Friday, 9:00 AM to 6:00 PM (Moscow Standard Time). Our email support is available 24/7, and we aim to respond to all inquiries within 24 hours.

Do you provide technical support for Ledger devices?

Keystone Digital provides educational content and guidance through Ledger Key. For direct technical support, warranty claims, or hardware issues with your Ledger device, we recommend contacting the official Ledger Support team directly through their website for the most secure and direct assistance.

Can I visit your office in person?

We operate primarily as a digital consultancy. While we have a physical office, visits are by appointment only. Please contact us via email or phone to schedule a meeting if you have a specific business or partnership inquiry.