Amazon India — Amazon pay account hacked and money lost

In 2020 in pandemic period my Amazon account got hacked which is loaded 9999 rs inr in Amazon pay balance and someone hacked open and changed my no. And mail of my account and I even don't get a OTP for verification for changing my nom just got 2 mail which screenshot I included I contacted amazon.in so many times but no one helped me. I have proof of the payment of 9999 rs done via my father's credit card I have account from which I bought the gift card