Complaint against Amazon India — Refund not initiated in amazon

I Order 1 mobile(5000/-) on 23 march after 2 days i cancelled that order and amazon send refund mail with refund ref no but still now my money not credited and i contact my bank they told amazon declined ur refund kindly check ur merchant…no one response and no one help me…worst amazon…both are playing games…

date of transaction-24/03/2017

transaction amount-5000

amount debited from this account-625401529381

Refund amount – 5000

Refund Date – 27/03/17

Mode of transfer(NEFT/IMPS) -Online transaction through Debit card

Iam Already contact to Amazon they told that is successful
transaction but i cancelled that order after amazon refunded money to your bank with refund reference number 20170832174515914…