Help, what is Unicom's customer service hotline?

1. China Unicom National Labor Service Hotline: 100 10 Press "0" to switch to labor. 2. After you log in to Unicom's online business hall, click "Customer Service" on the toolbar on the right, enter the question "How to contact online customer service" in the pop-up dialog box, press Send, and click on the hyperlink entry of "Root Transfer" to find online manual customer service. If you can't access it, you can try it again later.