Corporation Bank — not refund my money

Address:

Kalahandi, Odisha

I order scientific calculator in amazon.com on 11th october in this month. I payment in debit card. But i cancel this order. Till my money not transfer to my account. My a. C is [protected]. My order's price is 749. My order's refund reference no. Is[protected]. Now i stay in bhawanipatna. But my bank's branch in paradeep. I go to near my branch office in bhawanipatna. And there i check my account but not refund money submit in my account. How i get my refund money?? So please help me.