Amazon India — Product already returned but refund not initiated yet

Ordered a product and the product didn't match that i order so I return it and yet refund was not initiated to my bank account till now also amazon is not returning the product that i recieve/anount of shoes.
Puma Women's RS 2.0 Mono Metal Wn s Black-Rose Gold Sneaker - 7 UK[protected] from my amazon account- Order #:[protected]. But i received a different item and i have contact to customer support team, they asked me to send a picture and i have sent it. After that my return is confirmed and return is completed on 3rd May. NOw refund is not initiated. im struggling from past 20 days to get an positive response from your side. But yet i didn't received anything.