There are four possibilities why the mobile phone card issued by the university cannot be turned off, which need further verification:

1. The business hall I went to was a private business hall. If my card is run by someone else, then others may not stop running newspapers in order to get more commission.

2. It is possible that the card is not from real-name registration system, and it will take some time to stop using it.

3. I may have given back some gifts when I entered the net, and I participated in some promotional activities by default, so I can't stop reporting during the activity.

4. For other unknown reasons, you need to consult the mobile business hall.