Indian Bank — refund not get credited even flipkart has refunded the amount

Order id: od[protected]

Flipkart_refund update - refund of rs. 399 for od[protected] has been done on 14.03.2020 to your credit card or bank account and will be credited by 23.03.2020. Please reach your bank's customer care using the number behind your card with the reference number -[protected] for further assistance. Regards, flipkart
So i request you to please resolve the issue with in short time and iam not knowing where the issue was with and money didn't got credited in my bank account it's been many days, whenever i contacted flipkart they are telling me that refund has completed and it's none of our business. So i request you to kindly take the issue serious and assist carefully