Indian Bank — Amazon refund money not received, indian bank not initiated

My name is saravanakumar and i had ordered samsung m31 mobile of rs.16599 in amazon on 30/6/20 and after i cancelled this order due to personal reason on same day. And on 01/7/20
Amazon initiated the amount to my card and processed but i still didn't get the money. Amazon sent this refund reference number
75503720183040676958897 and i told to initiate my refund but indian bank doesn't. So
Please kindly respond to this complaint it's very urgent.