You just joined the insurance company. Don't think about training bank staff yet, because bank counter staff don't like to help you sell insurance, although there is a commission. You should get on well with them first, have dinner and chat, and then you can communicate with the network director and give you an insurance explanation. . . In short, naturally let the bank staff help you sell insurance. . I used to work in China Bank. Life's account manager chats with us at our outlets every day. . . Then the insurance sold well. . .
Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.