Ahem ~! According to the "Notice of Claim" provided by PICC P&C Association of China, the documents and materials required for claim settlement, as well as the contact person and telephone number, shall be specified. Dude, in order to answer your question, I went through the information specially. Remember to pick me!
Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.