If what you say is attached to the admission notice of freshmen, you can choose to use it or not. This is the cooperation between Suzhou University and operators. It doesn't matter whether you use it or not. You can also choose other operators after you arrive in Suzhou (but it is also convenient to use, especially when you are a freshman, many foreign students use it for convenience, so everyone's mobile phone number is similar, but the tail number is different, which is convenient for memory).