IDFC Bank — Loan amount given back submitted

I had taken a personal loan from IDFC bank on 26th august as they told me it was 10% but they changed it by saying its 17% reducing rate of interest so this was not acceptable so i paid it back by cancelling my LIC policy and paid back the loan amount but they are not ready to close my case as i have paid back the entire loan amount plus ten thousand extra as fine they had given a TAT of 30days but the issue is still goin on they have created multiple cases and they are not willing to close the case its been more than a month that was my savings which I closed to pay back the loan, kindly look into this and please ask them to close it .Now after paying back the loan they are mentally torturing me by call every now and then and they they will charge me EMI this month also need help and want this case closed
Name: Pradeep Ramanujam
Mobile number:[protected]