Provide technical support for Chengtong's full range of products (product selection/replacement, simple troubleshooting, answers to common technical questions (FAQ)).
Provide business information consulting, invoice inquiries, etc. and handle returns and exchanges
For 24-hour response to make effective protection, for the product site after-sales service needs in a timely manner to send a single
A professional team serves in the tracking and management of complaints to ensure timely feedback and handling of each customer complaint.
