Canara Bank — refund not initiate..

Address:

BIBI PAKER,BEHIND DON BOSCO SCHOOL,QAZIPURA,POST;LAL BAGH,DARBHANGA,BIHAR, Darbhanga, Bihar, 846004

I supposed to receive a refund from amazon by 24/1/2020 but it still isn't credited. Amazon send me the reference number is # 74332740020001948140040 and told me to contact with your bank. My canara bank account number is[protected]. I paid the transaction using my canara bank visa debit card ending with 1226. Amount is ₹4059.00. I did this transaction on 14/1/20. They initiated n the refund processed it on 19/1/20..