12306 do not allow delete contacts? 12306 ways to delete a common contact

1, we use their own account and password to login 12306, after the successful login click on the upper right corner of the "my 12306" as shown in the following figure red

2, into my 12306 interface after clicking on the "Common contact" as shown in the following image

3, then in the open contact person will have we have previously added contact, as shown below, of course, we can also increase the contact person.

4, select the contact you want to delete and then click the "Delete" button, as shown in the picture

5, then there will be a delete confirmation box, we click on the "Confirm" button

6, this common contact after the successful deletion, as shown in the figure

12306 does not allow removal of the workaround

There's no way to do this. Only according to the system prompts us to delete this common contact in the daily routine.