The traffic police in Shenzhen can't send text messages.

The appointment failed, and it was not time to make up the exam.

1. Booking failed. There are too many people on the day of the make-up exam of subject 3, which will lead to the inability to receive text messages. You can log in to the system of traffic control 12 123 to check whether the reservation has been successful or re-reserved.

It's not time to make up the exam. Make-up appointment can only be made after the last exam 10 days. If the make-up time does not reach 10 days, you will not receive SMS, and you need to make an appointment again after the 10 exam.