Why didn't you receive the SMS prompt when ordering train tickets online?

Online booking system and SMS platform system may process a large amount of data instantly when booking tickets, so SMS platform can handle it only if it does not receive relevant prompt messages.

Another possibility is that the related software of some users' smartphones automatically identifies the short message as spam or automatically blocks it.

You can turn on the relevant software of your mobile phone and see if there is any message in the spam message that prompts you to make a successful appointment.

There is another situation, that is, when the system platform automatically sends text messages to the mobile phone, the mobile phone happens to be in the broadband occupied by the call, or just in the floor and elevator, and the mobile phone signal is weak, so it is impossible to send text messages to the mobile phone.

However, as long as the payment is successful, the payment is displayed in the bound registered mailbox, and there is an order number, the booking is completely successful, and you can safely pick up the ticket!