Contact Us
We are here to help you anytime
Contact Information
We provide multiple ways to contact us to ensure you get the help you need quickly.
Office Hours
- Monday to Friday: 9:00 AM - 6:00 PM (Beijing Time)
- Saturday: 10:00 AM - 4:00 PM (Beijing Time)
- Sunday: Closed
- Public Holidays: As per national regulations
Emergency Contact
For urgent technical issues, please email:
emergency@smdsn.com
We will respond to urgent issues within 2 hours.
Send a Message
📋
Technical Support
Dedicated email for technical issues handled by our expert team
catdsn@outlook.com🏢
Office Address
Our office location
Chaoyang District, Beijing
Digital Marketing Tower, 15th Floor
Postal Code: 100000
Quick Access to FAQs
If you encounter the following issues, you can visit the related pages directly:
- Usage Issues: FAQ - Find answers quickly
- Refund Requests: Refund & Dispute Policy - Understand the process
- Privacy Questions: Privacy Policy - Learn about data protection
- Service Info: About Us - Learn about our services
Response Time Commitment
We commit to responding to your inquiries within the following timeframes:
- Urgent Issues: Within 2 hours
- Technical Support: Within 4 hours
- General Inquiries: Within 24 hours
- Business Inquiries: Within 48 hours