The cancellation method suggests that you consult customer service, and the regulations vary from place to place. You can log in to the online business hall to find the corresponding business, or you can call 10086 for manual service consultation.
Generally, you use your mobile phone to send a text message to handle the package, and he will send you a text message to tell you how to cancel the package business. If not, you can call 10086 to choose manual service, and ask customer service to cancel the package for you, or go directly to the business hall to cancel it.