First, ID information is called verification, not activation. Identity card information can be verified at any passenger train station or train ticket sales point in the country;

2. When inquiring about the identity information of common contacts (passengers), you can hold the original valid ID card of common contacts (passengers) filled in 12306.cn website and the original valid ID card filled in by registered users in the train station window, and you can purchase tickets online normally after verification;

3. Users who register on the website 12306.cn, and the website 12306.cn prompts "duplicate identity information", should go to the ticket window of the station with the original valid identity document filled in on the website 12306.cn, and may not entrust others to handle it. After the window is completed, existing registered users should log on to 12306.cn website as soon as possible to modify their identity information, and new registered users should re-register as soon as possible.