No matter whether it is a regular worker or a temporary worker, the unit fails to pay insurance and should make up for it, otherwise the unit violates the law, which is hard and fast stipulated in Article 72 and 100 of the Labor Law.

Article 72 The sources of social insurance funds shall be determined according to the types of insurance, and social pooling shall be gradually implemented. Employers and workers must participate in social insurance and pay social insurance premiums according to law.

Article 100th if an employer fails to pay social insurance premiums without reason, the labor administrative department shall order it to pay within a time limit; Overdue payment, you can add a late fee.

You can complain to the labor inspection brigade, which is a simple and quick method.

Extended reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.