Zestmoney — Loan Repayment done on app but not reflection in CIBIL.

I had done a transaction on Makemytrip of Rs 11265 on 18th January 2021 using ZestMoney.
The Repayment of the same amount was done on the same day (18th January 2022 around 3.20 PM)

But 6 months ago It started reflecting on the CIBIL report as not paid.

Since then I have sent numerous emails to them but the situation is still the same. Every month my CIBIL score is going down!!! It has gone down from 808 to 672.

I am feeling very helpless due to this, as my cibil score is so low, I will not get any new loans due to the poor CIBIL score.

Please help to fix this