Support
Customer Support
Contact our team for D-GO Quantum Data Vault product and technical support.
Contact
Contact details
Email
sales@d-go.info
Enquiries accepted 24/7
Phone
1800-0705
Weekdays 09:00–18:00 Korea time (UTC+9)
KakaoTalk channel
Enquiries accepted around the clock
Start a chat enquiry or scan the QR code on your phone to add the channel.

Office hours
- Weekdays 09:00–18:00 Korea time (UTC+9)
- Closed on weekends and Korean public holidays
- Email enquiries accepted around the clock
Address
540 Misa-daero, Hanam-si, Gyeonggi-do, Republic of Korea
Suite 614, Building B, Hyundai Knowledge Industry Centre, Hangang Misa 2
Inquiry
Contact us
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Enquiry type
General enquiries
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Note: If your email app does not open, send your enquiry to sales@d-go.info directly.
Q & A
Frequently asked questions
Purchasing, repairs, delivery and warranty questions
- Purchasing — Can individuals purchase D-GO?
- Yes. Single-unit purchases are available for individuals as well as organisations. See the purchase page or contact our team.
- Purchasing — How long does delivery take?
- Delivery typically takes two to three weeks after order confirmation, depending on quantity and customisation. We confirm the schedule when you order.
- Delivery — Are there delivery restrictions?
- Delivery is available throughout Korea. Additional charges may apply to Jeju and island destinations. Please contact us about international delivery.
- A/S — What is the warranty period?
- A one-year service warranty applies from the purchase date. Hardware defects are repaired or replaced; damage caused by user handling is subject to repair charges.
- A/S — What happens to my data if the device fails?
- RAID 1 mirroring provides data redundancy. Data remains encrypted during servicing and cannot be accessed without PUF authentication.
- Technology — Are both Windows and Mac supported?
- Yes. The app supports Windows, macOS, Linux, iOS and Android. Browser access is blocked; connections use the dedicated app.
- Warranty — What is the refund policy?
- Unopened products may be returned for a refund within seven days of receipt. Opened products are eligible for exchange or refund if defective.
- Warranty — Can the warranty be extended?
- Corporate customers can extend coverage through an annual maintenance agreement. Contact Sales for details.
Contact us if you need further assistance.
Contact UsSecurity Notice
Security notices
Important product updates and security notices
No current notices
There are no current notices. Important product updates and security information will be published here.
