Amazon India — Wrong payment and refund money

Website:

www.amazon.in

My name is sijo chandapillai
mail id is [protected]@gmil.com

I am ordered sandisk 16 gb memory card for camera on 3-9-16 with order no.[protected] of Rs. 397/-
when first time i tried, the payment is declined
but next timeit is ok.
but the first payment of Rs.397 is not refunded yet


my total amount is 397+397 = 794

so pls refund my money of Rs. 397