Do you have customer information? Do you have a phone number? Organize a perfect set of words, and then you can start scanning your phone. Record the main conversations after the phone call every day, and then make detailed comments and follow-up. When you speak, you must not be bypassed by customers, you must not be too distant from customers, and you must not let customers find reasons for refusing. Telephones must be well organized and developed in stages. I don't know. You can ask me.