IDBI Bank — payment refund issue

Address:

Muthoot finance khanna above axis bank, Ludhiana, Punjab, 141401

Respected sir, mam
I have issue that my amazon cash will not refund in my account number in last 15 days amazon send refund on 04/10/2019 but i cant be receive any amount in bank .

Account no:- [protected]
Account holder :- pardeep singh
Order number:[protected]

I will order amount is 849 by my debit card. I can call many time to amazon customer care he will always says that your bank is responsible for this amazon will send your amount on[protected]
But cant be received any amount
The amazon provide me to reference number is -0R8UD3TG0000K0OBP1GQ
AND ALSO SEND TO ME THIS massage :-

(This is to confirm that refund for amount 849.00 has been successfully processed on[protected] and the amount should reflect in your account by now.

Refund Reference # 0R8UD3TG0000K0OBP1GQ

Please contact your bank’s customer care center and quote these numbers to know further about the status of the transaction in case you still haven’t received the credit within 4 business days. Please remember that you will have to call your bank’s customer care center and not visit the branch for this update.

Some nationalized banks may take more time than normal to credit the amount. If your bank is unable to locate the refund with the reference number provided, please dispute the transaction as 'refund not processed'. At that time, they will see a pending refund and will follow the path back to our payment processor to locate the refund.)

Please help us to refund my amount on account
He says me to refund mode is reverse entry