HDFC Bank — refund on amazon products

Address:	Bangalore, Karnataka
Website:	Amazon

I recently ordered 2 items in amazon and cancelled the orders because of the reviews which i didn't observe earlier and amazon has initiated the refund on 19th july and they mailed the refund will be reflected within 25th july but i didnt get the refund still but the customer service is not at all good they are not providing the relevant information and after dialling correct informmation they are saying it is wrong.
The reference numbers are 719357 and 721199