How to refund the social security of flexible employees after repeated payment?

Legal analysis: The social security refund method for flexible employees is as follows: 1. Flexible employment personnel payment and enterprise duplication, return the flexible employment personnel payment; 2. If the bank's withholding and payment are repeated with the enterprise's payment, the part of the enterprise's payment during the repeated period will be refunded; 3. If the payment information of institutions and flexible employees is repeated, the payment part of flexible employees during the repeated period will be returned. The state establishes a national unified personal social security number. Personal social security number is a citizen's identity number.

Legal basis: Article 58 of People's Republic of China (PRC) Social Insurance Law. The employing unit shall handle social insurance registration for employees within 30 days from the date of employment. 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. The state establishes a national unified personal social security number. Personal social security number is a citizen's identity number.