Amazon India — Refund from Amazon not credited

Hello,
Amazon India has refunded me rs 699/- and 472/-in my bank account.
My bank account was Oriental Bank of Commerce which is now PNB.
Amazon has initiated my refund on 30th of January 2020 and they have provided me rhe reference number also. I tried calling the customer service. No one picked up the call. I also approached the bank and no proper answer was given.
Bank Account No: (protected)
Bank : Punjab National Bank
Branch: Kotekar Branch, Mangalore
Refund Reference No: 74332741024102308463636