What should I do if the social security card has just been completed?

First, the social security card you mentioned is a medical insurance card. It takes a time process from issuing to social security system certification;

Second, medical insurance must be paid continuously to enjoy it, at least for three months. Otherwise, the payment of 1 month will stop in the second month, and if medical insurance still needs to be spent, the government will lose money! Secondly, whether the funds allocated by the company are in place is still a process, so it is set to be used after three months.

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