Unicom's mobile phone number SMS has been blacklisted. How to solve it?

It is suggested to call 100 10 customer service to enter the manual customer service to understand the solution;

Unicom users call the 100 10 customer service hotline directly in China (excluding Hong Kong, Macao and Taiwan) free of communication charges, and the call duration is not included in the package;

Add the area code and call the customer service hotline 100 10. Tariffs vary from province to province. You can contact the local manual customer service to find out.