State Bank Of India [SBI] — refund not processed. reference no. 823341

Address:

Imphal East, Manipur

A refund of 1692rupes was successfully processed on 11th september 2018 to my account by amazon this amount should have been redited to my sbi account by now, but i have not received the refund till now,
I have called the sbi customer service and also the state bank of india branch all the details many times including the unique transaction reference number but nobody has resolved the problem no action is being taken
I have confirmed with amazon and they have successfully processed the refund kindly go through the charge dispute email locate the pending refund and follow the path back to amazon payment processor to locate the refund
My refund reference number for the transaction is 823341