Amazon India — money initiated but not processed by bank

Amazon has initiated refund for 2 products 319.00 and 270.00 on 9th august in which 319.00 is credited to my account and 270.00 is still pending. The refund reference number for both the refund is 573970 & 573970. When contacted amazon team they told to raise charge dispute. After raising charge dispute also no response from indian bank side. So kindly take required action.