State Bank Of India [SBI] — amazon refund problem

Address:

Village maur post maur tehsil khair, Aligarh, Uttar Pradesh, 202137

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

Subject: charge dispute "refund never processed"

Dear sir

A refund of 786 rupees was successfully processed on 13 october, 2019 to my account. This amount should have been credited to my sbi account by now, but i have not received the refund till now.
Reference no[protected]
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 successfully processed the refund