Punjab National Bank [PNB] — Refund initiated amazon but not received.

I am order the anarkali kurta by amazon which price is 799 and the order I'd is[protected] but I return the order some issues and after 7-8 days not received any type of my money back and then I call the Amazon customer care but they told me that they have my money insited to my bank but money not received and they have to give me refund reference number[protected]