Why can't the company pay social security for me?

1. The company where the user used to work is still paying social security for the individual, which makes the company where he works now unable to pay social security;

2. The personnel department or human resource management department of the company where the individual is currently working cannot pay social security due to improper operation or dereliction of duty;

3. Some companies use social security as a cover to defraud property.

These are three possible reasons why social security can't be bought.