Welcome to the Sona App! We are committed to providing the best user experience and delivering swift and effective support. Below are guidelines on how you can receive support when needed.

User Support for Sona

Online Support

• Support Email: For quick assistance, please email us at duodevsol@gmail.com.

• Help Center: Visit our help center at https://duo.io.vn/lien-he/ for answers to frequently asked questions.

Phone Support

If you require direct support, please contact us via our support hotline:

• Support Hotline: +84-393-333-332

• Hours of Operation: 9:00 AM to 5:00 PM (GMT+7), everyday.

Updates and Maintenance

• Update Notifications: We will notify you through the app and email when new updates are available.

• Scheduled Maintenance: Information about routine maintenance will be announced at least 24 hours in advance through the app and email.

Feedback and Suggestions

We highly value user feedback to improve our app. Please send your feedback via email or through the "Feedback" section in the app.

Our Commitment

• Privacy Commitment: Your personal information is always kept confidential. Details about our privacy policy can be found in our Privacy Policy.

• Quality of Service Commitment: We are committed to providing high-quality, timely, and effective customer support.

Special Terms of Use

Any special cases related to app usage will be handled according to the Terms of Use published on our website.