Flipkart — Flipkart pay later showing overdue and late payments

I have been using Flipkart pay later since last 2 years and i haven't missed any payments around 12th of June 2022, i have seen huge drop in my credit score and this was caused because there were late payments and overdue amount in Flipkart pay later which is provided by IDFC bank, i have contacted both Flipkart pay later and they took the complaint on June 14th since then they have not resolved this issue and every week i call for update they say our team is investigating the issue they will call you soon. it's almost 3 months and they still haven't provided me any resolution. This issue has caused me so much of problems all lenders are refusing to provide loans and denying my application.