Quick query 
Range
From customers (or the parties concerned) on the quality of testing work, service attitude and other aspects of criticism, opposition, comments and complaints belong to the admissibility of complaints.
Complaint form requirements:
The complainant should fill in the relevant contact information and relevant content according to the following requirements, and may not be able to respond to any complaints which are incomplete or incorrect in the absence of contact information or information. The content of the complaint shall be as detailed as possible, such as the time and place of occurrence, the specific personnel, the cause of the case, etc.. If samples or certificates are involved, information such as business receipt, bar code number and certificate number should be provided.
