The school tuition shows that I didn't receive the text message.

Generally speaking, there are two situations in which students can't receive text messages.

1. Students are not wearing cards normally. If the school is equipped with brushless attendance equipment, students can take part in the work as long as they pass the school gate. However, this kind of brushless attendance equipment will also have some shortcomings. If students don't wear cards normally, such as putting them in schoolbags or pencil boxes, the attendance machine won't recognize them and parents won't receive information.

2. There is something wrong with the student card or the attendance machine. In this case, you have to ask the customer service staff for feedback, and then ask the relevant technicians for maintenance and management.