Punjab National Bank [PNB] — charge dispute "refund never processed"

Address:

gharsana ganganagar rajsthan 335711

To

The chief branch manager

Punjab national bank

Main branch

Subject: charge dispute "refund never processed"

Dear sir

A refund of 1000 rupees was successfully processed on 19th march 2019 to my account by amazone. This amount should have been credited to my sbi account by now, but i have not received the refund till now.

I have called the punjab national bank customer service and also emailed the state bank of india main branch all the details many times including the unique transaction reference number but nobody has replied or 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 emails, locate the pending refund and follow the path back to amazon's payment processor to locate the refund.
My refund reference number -512642
My account no is [protected]