Canara Bank — refund from amazon is not reflecting on my account

Hello I am Nina Kar (Banerjee) from Kolkata..recently I cancelled an order of mine from Amazon but the refund hvnt been credited to my account till now. However Amazon has initiated the refund amounting to Rs 1129 on 13.7.2018 and intimated me through mail. They assured me that I can expect refund by 18.7.2018 and provided me a Authorization Code (Refund Reference Number for the transaction is 498621)..But to my utter dissapointment i hvnt received my refund in my account yet...When i contacted Amazon customer care they told me to contact customer care personnel of Canara Bank so I contacted your customer care executive but he didn't provided me any help and suggested me to contact my home branch.Then i raised a complaint and then they provided me a Trascation Number ie[protected] and suggested me to write this mail.So I would be very obliged if Canara Bank provide me my refund at the earliest and notify me if you need any other information from my side is needed to issue my refund in my account.