State Bank Of India [SBI] — amazon refund cash but still cash not visible my account

Address:

idco tower, janapath , bhubaneswar , khurda,odisha, Khordha, Odisha, 751007

A refund 1245 rupees was successfully processed on 31/august/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 .
I have called the SBI customer service several times with unique transaction reference number but no body has resolved the problem, also they said that we are not looking this . Still no act being take .
I have confirmed with AMAZON and they have successfully process the refund .
Kindly go through the charge locate the pending refund and follow the path back to amazon's payment processor to locate the refund .