State Bank Of India [SBI] — Charge dispute refund never processed

Address: 843320

Website: Sbi.co.in

To,
The chief branch manager
State bank of india
Main branch

Subject: charge dispute "refund never processed"

Dear sir

A refund of 448 rupees was successfully processed on 20 june 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 state bank of india 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 called to do charge dispute file against sbi.
My refund referance number - igabesprq1
My account no is [protected]