[Resolved]  Flipkart — refund amount not yet credited to my bank account.

I had recently ordered an item from Flipkart on 21/10/2020 which was delivered on 28/10/2020 and had returned the item on 29/10/2020 because the product was not of the required size.
The Refund was initiated and show's status as "Refund Completed" on 07/11/2020. But the Refund amount is not yet credited to my account. I tried contacting Flipkart Customer care But they were of no help, They wanted me to verify with my Bank with the 12 digit reference number that they've provided. I did so, but the Bank needs an ARN number(23 Numerical Digits) to verify the above. But Flipkart customer care gave me a 12 digit reference number which is of no use for the bank. I contacted Flipkart again asking for the ARN number(23 digits). But they say they don't have a 23 digit number and asked me to contact the bank again. I'm stuck in this loop between Flipkart and bank and the issue is still unresolved. I don't know what to do Further please help me.

Order ID: OD[protected]

I'm attaching the Screenshots of my Flipkart's and my Bank's reply