Rupeestar — Loan amount paid still getting harassment calls for repayment

I had taken a loan on 27 feb and paid the amount on 5 march, still getting call from them to repay. already shared all the details to them but they are not ready to listen and using abusive words on call and blackmailing me if i wont pay the amount they will call all my contacts.
Loan account:JKD[protected]swn1