1. Contact the insurance company through the official website and customer service phone number of Jiangsu Medical Insurance No. 1 and explain the problem.

2. To prove that you are a legal policy holder, you must provide relevant certification materials.

3. Fill out an application form to apply for modification of policyholder information. The application form requires a handwritten signature and an electronic signature.

4. Submit the supporting documents and application form to the insurance company and wait for review and modification.