Who called from 9702362181

I got a call, it went to my vm because i was at work it said " troublemaker, homewrecker." when i called it back, i was blocked,  Really confused me.

Recored message about students loans

Keeps calling about student loans.

Call my mobile number but do not leave any message.

Calls daily up to 3-4 xs day requesting me to pay money saying I have a zero balance. I do not know what or why they call. I want this to stop.