Amazon India — money not credited

Address:

New Delhi, Delhi, 110019

Your refund for the order[protected] of Rs.429.00 has been processed successfully on[protected]. The amount should reflect in your account by[protected].

The Refund Reference Number for the transaction is[protected].

This is the msg that i received from Amazon after returning my order.
But till now no amount is credited in my account.
I called Amazon so many times but they are saying call bank customer service.
I called bank customer service representative but they are saying call Amazon customer service.

I repeated calling both bank and Amazon so many times.

But nobody is actually helping me with this.