Zestmoney — Loan Closure not done since a year

Website:

zestmoney.in

It is regarding the payment through zestmoney on Ketch for an amount of Rs 1258.40 with Loan Id #376D2DFKT739 for which the order was cancelled and the same has been refunded by the merchant on 17/03/2022.
Despite of providing all the details regarding the refund details zestmoney was unable to cancel my loan leading to a poor CIBIL score. Its been a year that I am contacting your customer support and all I get is a new ticket ID telling me wait 24-48hours to get the issue resolved. The recent ticket ID that was provided to me is #2946098
I am disgusted by the poor customer service as it is really a harassment for me to call/email the team in every 3-4days to resolve my issue since a year and all I get is a ticket ID without any solution.