State Bank Of India [SBI] — my money not refunded

Address:

New Delhi, Delhi, 110081

My name is madhima i ordered a whirlpool 7 kg, semi automatic top loading washing machine from amazon on 29/sep/2019. But it due to some reason they rejected my order and issued a refund of rs 7899.10 but it should have been credited to my father's sbi account by now, but i have not received the refund till now. I called amazon customer care number and they told me that they have already processed the refund and gave me a refund reference number #209760 and they told me to give this number to the sbi customer care, but nothing was resolved. I have confirmed with amazon and they have successfully processed the refund.
So kindly refund my money.
My sbi account no. Is [[protected]]