Zhejiang province paid social security, Shenzhen paid social security and paid two social security. What if it overlaps?

Zhejiang province paid social security, Shenzhen paid social security and paid two social security. If they overlap, you can choose to cancel one of them.

According to China's existing social security law, everyone can only pay one social security at the same time.

However, because China's social security is currently paid locally, there is no Internet connection, which actually causes the same person to pay social security in two places at the same time. The duplicate payment cannot be refunded temporarily, and it can only be refunded when the two social security systems are transferred together in the future. When the social security systems are merged, overlapping parts will be found. The Social Security Bureau will ask for a refund of one of the overlapping parts, and only the individual contributions can be refunded. For social security, all expenses are borne by individuals and there is a loss.