State Bank Of India [SBI] — refund not processed by sbi

Address:

Nagaur, Rajasthan, 341516

Dear sir
A refund of 2166 rupees was successfully processed on 16apr2018 to my account from amazon.in. This amount should have been credited to my sbi account num: [protected] by now, but i have not received the refund till now.

I have called the state bank of india customer service and and shared the authorization code (Refund reference number) 74332748106810500528792 with the executive but he expressed his inability to address the issue and the issue is still unresolved.
I have confirmed with amazon and they have successfully processed the refund on 16aprail 2018
Kindly go through the procedure to locate the pending refund and follow the path back to amazon's payment processor to locate the refund.
Account number [protected]