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

Sir, I have ordered the product ( Big Fox Suede Leather Sandals) on 24th February 2021. The price of the product was 498 including delivery charges.The mode of payment was cash on delivery. The order ID is[protected]. and Original invoice number is IN-5990. The refund issued on 9th march 2021.and Amazon Return ID is DdGLCxqzRRMA. the credit note number is CN-1604.
Its been 7 months after claiming my return and Amazon also issued the but i did not get the money. Sir please help me as soon as possible.