Supplementary social security issues

Complain to the Social Security Bureau: 1. Mayor's hotline complaint; 2. You can call the Ministry of Social Security for letters and visits. There are three ways to query social security: 1. Social security center inquiries. If you don't know your social security account number, you can bring your ID card to the business hall of the social insurance agency in each district to inquire; 2. Check online and log in to the labor security network of your city.