IDFC Bank — Flipkart Pay later cancellation

I got Rs. 7000 amount through Flipkart Pay later service offered by IDFC bank through mobile no. [protected] Now my Flipkart account has been blocked due to some reason and they said they can't help to close/delete/deactivate Flipkart pay later service. I haven't used this amount ever. But it is affecting my Credit CIBIL score showing this amount as active in Credit bureau report. Remove/deactivate this amount so that it should not reflect in my credit report