What should I do if I don't receive a text message after successfully booking a ticket in official website?

I booked a flight in official website of Shenzhen Airlines a while ago. If all these are normal, I still haven't received the text message. I suggest you contact Shenzhen Airlines 9536 1-3# for consultation, or log on to the official website of Shenzhen Airlines to inquire for yourself. 1, the user directly calls the official website of the airline that booked the ticket to see if there is boarding information, even if the ticket booked through the agent's website is finally recorded in the airline. 2. After the booking is successful, a short message will be sent to the user to remind the user that the booking is successful. However, sometimes users may not receive information because of the problems of SMS operators. If the user can't receive the SMS, he can enter the ticket order interface, find the order and check the order status of the ticket order. If it is displayed as "Booked successfully", it means that the order is successful, so he can check the details and board the plane with confidence. 1. Check whether your phone is turned on in airplane mode. After the airplane mode is turned on, the mobile phone will not receive any information. 2. Check whether the mobile phone number you use is down due to arrears. 3. Log in to official website 12306 to check whether the personal information mobile phone is bound. If you are not bound, you will not receive information. To check whether the order was successful, you can check the information in the binding email and the order completion status of 12306. Another possibility is that the related software of the smart phone used by passengers automatically recognizes the short message as spam or automatically blocks it, or the reserved mobile phone numbers registered and used by official website Railway are inconsistent. This happens sometimes, but you'd better go to the mailbox to confirm it. If there is a confirmed email in the mailbox, there is basically no problem. I bought a few tickets last time, but I didn't receive a text message, but there was a notice email in the mailbox, which was very detailed. I changed my ticket smoothly, so it should be no problem.