Indian Bank — not getting refund

Address:

Vit Vellore, Vellore, Tamil Nadu

Transaction failed money is not coming bank. Even enquiring bank and customer care no use. Amazon had given refund to me for cancelling order and they had given reference id, but indian bank doesn't giving money back and i had enquired local bank and filled a form they said you will get money back within 40 days but even 4 months i didn't get money back. I am facing the issue only with indian bank.