"Listen to the voice of customers and serve customers sincerely" is the pursuit of Yitong standards. In order to continue to improve the quality of service, Yitong Standard has been dedicated to serving customers since 20 years, accepting various complaints and suggestions, and supervising the quality of customer service in various departments to achieve the goal of creating value for customers and cooperating with customers for a win-win situation.

 

　　If you are not satisfied with our products and services, or have good suggestions, please fill out the form below, our customer service specialist will contact you to provide you with feedback information and negotiate a solution.

 

　　Online complaint form only accepts business complaints.

 

　　 1. Contact the customer service who served you before

 

　　 2. Send an email to Yitong standard mailbox ETR888@etrtest.com