Contact us personal
If you have any questions regarding returns or refunds, our customer support team is here to assist:
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Email: cotellbusiness@gmail.com
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Live Chat: Available 9:00–18:00 (Mon–Fri)
We welcome inquiries from global users, including product support, custom solutions, wholesale cooperation, and brand partnership.
Customer Support
For order, product, and usage questions:
Email: cotellbusiness@gmail.com
Response time: Within 24 hours on business days
Business & Wholesale Cooperation
For distributor, reseller and bulk order inquiries:
Email: cotellbusiness@gmail.com
Official Address
Ledger Global：1 Rue du Mail, 75002 Paris, France +33 (0)9 67 30 01 71
- Vieux-de-Provence (Research and Development Center)：Parc Technologique de Sologne, 18100 Vierzon, France
- London, UK：Ledger Technologies UK Ltd 23 Copenhagen Street, London, N1 0JB, United Kingdom
- New York, USA：Ledger Technologies Inc. 1375 Broadway, Room 504, New York, NY 10018, United States
- Central Singapore, Singapore：Ledger Technologies SG Pte. Ltd.9 Raffles Place, #26-01, Republic Plaza, Singapore 048619
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