I haven't received my social security card.

The social security card is collected according to the identity of the unused person. For example, on-the-job employees are insured by employers and collected by employers; If you buy social insurance as a flexible individual, you can get it from the social insurance agency. The employing unit shall, within 30 days from the date of employment, apply to the social insurance agency for social insurance registration for its employees. If the social insurance has not been registered, the social insurance agency shall verify the social insurance premium it should pay. Employees-free individual industrial and commercial households who voluntarily participate in social insurance, part-time employees who do not participate in social insurance in the employing unit and other flexible employees shall apply to the social insurance agency for social insurance registration. Personal social security number is a citizen's identity number. Personal social security number: Social security number is the only sign that citizens participate in social insurance, enjoy social insurance benefits and realize the connection of social insurance rights and interests, and it is also an important sign that citizens enjoy social security rights and interests. The social security number is required to be unique in the country, unchanged for life and unified in rules.