MoneyTap — Not providing Loan Closure Confirmation Document

My loan was paid up on 25th June 2021.
I wrote a mail and requested for Loan Closure Confirmation Document or NOC from the company on 23 July 2021. Since then I have sent 5 reminders and each time an ETA is provided for the letter but still haven't received one in email or hard copy.
False promises are made each time.
Last notification was received from them on 30th Aug 2021 that I should expect letter within 48 working hours.

My Loan reference ID is - ICMT[protected]