Amazon India — refund my money from amazon

I pratunu mahapatra. I ordered a product from amazon on 28/04/2018. But amazon delivery wrong product. I cancelled the product and amazon collection the product on 08/05/2018. I paid cash on delivery rs -22150/-. But this money didn't credit on my account. I call customer care. He said that i refer money your account. But no money credit in my account. My money refer is responsibility from amazon. My order number[protected]. I hope amazon queak action in my case.