How to complain if you don't reply to text messages?

Chatting with 10086 by SMS, but no reply:

1 and 10086 are mobile customer service phones, not chat objects.

2. 10086 is a system. Only sending specific words or numbers will trigger the system to give a reply message, and the content of the reply is generally fixed or generated for the account information of the sender.

3. 10086 customer service hotline provides business services such as business consultation, business acceptance, complaints and suggestions on mobile communication through manual, self-service voice and SMS.