Canara Bank — refund undone

Amazon has refunded an amount to my bank through credit card but the amount has not been credited to my account. It has been a week since the amount refund was initiated .kindly take action against it. I have the reference number that is given by amazon to me that is 5S9IPQ7T0000K5PC67X2 and another is 5S9IQ29W0000K5PC40PD.the amount initiated on 29 th january and another one initiated on 31st jan. The two amounts are ₹5449+₹100 and the second one has ₹329. The bank is telling that amazon has not refunded and the amazon is saying that they have refunded also sent me the reference number . also I have received the emails by amazon . which I'm trying to attach but there is some problem I guess so kindly please look into this issue and give me my money back. Hope to get some positive news .
Shazia yusuf siddiqui
Acc no :[protected]
Mob no : [protected]