We first opened the railway 12306, and then came to the APP. We pressed "My 12306", as shown in the figure.
At my location 12306, we click on our name, as shown in the figure.
Go to our name page and press the first "favorite contact", as shown in the figure.
In common contacts, we choose to press "Add", as shown.
We need to fill in the basic information of the contact person, including the specific name, date of birth and ID number, as shown in the figure.
Then we will fill in our contact information. Here we mainly need to fill in the mobile phone number and email number. The mailbox number can be used to change the password, which is very important, as shown in the figure.
Finally, fill in the form and click Finish, so that you can add new passengers.