Flipkart — Refund fraud and seller has credited my money in fake account

Order id OD[protected]
SKECHERS GO walk 4 walking shoes for men
Paid through CASH ON DELIVERY
refund via self care
Below are the Details of My account in which my refund was supposed to credit
Name pramod shankar pandey
A/c[protected]
Ifsc CNRB0000365
BRANCH BANSPHATAK VARANASI
221001
ACCOUNT statement shared of this from 1 april 2020 to 12 january 2022..

As per flipkart 3000 rs refunded on 13.12.2021
Refund reference number is
[protected]
A/c ***********109
Ifsc BARB0SAMOBS

My refund for this shoes of 3000 rs was expected from Flipkart but they have not refunded and saying that the amount is credited and shared with me incomplete a/c details *********109 .. how would I come to know that this belongs to whom and how come this a/c is linked to my flipkart a/c.
They are not sharing the proof that i have put these details for my refund i m continuosly saying that this account doesn't belong to me and as enquired with the bank this account was closed since 2013.. and i have never ever had any link with this fake account..Flipkart is not helping me and continuously it's been a mental harrasment for me.. Why would i put a completely different and invalid bank account for my refund..Plz help me and investigate in this matter I had also shared my bank statement with them several times.
I had put my bank details for my refund which i mentioned above .. Plz help us..
..