Amy reminded me to ask my classmates to repay the loan.

When your classmate borrowed money, he set your mobile phone number as an emergency contact, and then he found you without returning it.

In another case, the phone address book of the classmate who borrowed money was read by the loan software, and you were his classmate, so I asked you to remind him.

The last possibility is that you have met a liar. Ignore it and don't believe it.

I also encountered this situation, when I was harassed by phone calls and text messages and asked me to help my friend repay the loan. I've been ignoring them ever since. After a month, there was no phone call.

I suggest you check with your classmates first to see if there is any debt. If so, ask him to return it as soon as possible. If not, don't worry about it. Of course, if your classmate really owes money, you have no obligation to help him pay it back. Be careful not to be cheated.