IDFC Bank — Loan payment

I'm using Flipkart pay later for my purchase.
My paylater lender is IDFC FIRST BANK.
lost December 2021 I buy washing machine.
My due date is 1st of every month.
My due amt is 1603/RS x 6month I made my emi to Flipkart app on time. I closed my all 6emi.
May 1st 2022 .
But from Bank side loan not closed.
Because Flipkart not paying emi completely.
From Bank side I received sms pay your outstanding dues .
Flipkart only to pay that. I contact customer service representative no proper response. They send link for payment to close outstanding balance. It's effects my credit report. My loan number is in credit report..