1. Every adult passenger can bring a child whose height is less than1.2m free of charge. If there are more than one child, those who are overcrowded should buy children's tickets.
2. Children's tickets are not sold separately, but can only be sold together with adult tickets.
3. Mobile phone 12306 adds accompanying children, suggesting that "children do not exist" may be due to the following reasons:
* Children under 6 years old, free children do not need to add, you can buy adult tickets directly with adults.
* The child has reached the age of 6, but has not yet applied for an ID card, so it is impossible to display the child ticket information. They need to buy children's tickets at the ticket window or sales point of the station.
4. After the mobile phone 12306 added the accompanying child, the authentication failed, which may be due to the following reasons:
* Children's ID number is wrong.
* Children's ID number has not been processed, so you need to buy children's tickets at the station ticket window or sales outlets.
5. If the accompanying children added in 12306 are missing, it may also be due to software restrictions that only adult ticket buyers can purchase tickets. At this time, you can try to use other software or windows to buy accompanying children's tickets.
The above information is for reference only. If you encounter any problems, please contact customer service 12306 for consultation and solution.