What's wrong with Donghua University's expired campus card?

Donghua University Campus Card has expired for the following reasons:

1, Donghua University's campus card is in arrears, so it needs to be recharged to return to normal.

2. The students' graduation campus card will automatically become invalid, and it will become invalid before the students leave school. The department to which the school belongs will handle the campus card information in a unified way.

3. If the campus card is not used in Donghua University for a long time, it will automatically become invalid.