Canara Bank — refund amount by amazon not reflected in my bank account

Address:

560073

I had made a purchase on amazon but had initiated a return and refund request. I had provided my canara bank account details for the refund amount to be deposited by amazon. The amazon billing team had confirmed that they have initiated the refund amount of inr. 549.00 on 12th march 2019 into my bank account but the amount has not been reflected till now in my bank account. The reference number for the refund is[protected]. Please look into the matter.