Amazon India — Haven't received the refund yet

Hello,
This is Narra Balaraju
I have an account in Indian bank

My refund was processed from amazon on 20 November of amount Rs.738
As per amazon it would have credited in my account till 7 November
however it is not yet updated
Here is the Refund reference number which is provided by amazon[protected]
My bank is stating that no such amount has received by them.
Please help me to get my refund back