HDFC Bank — Debit card emi generated and debited on cancelled order

I have ordered an item from Amazon and Flipkart on 10/3/2022 using HDFC DEBIT CARD EMI OPTION and the payment got declined from the bank end and the order got cancelled from both Amazon and Flipkart on that day itself.
Later after 4 days on 16/3/2022, I got message from HDFC bank stating that my debit card EMI has been generated and due is on 5 April for both the cancelled orders.
I have contacted both Amazon and Flipkart merchants and got reply like they haven't received any payment and order is completely cancelled and they have nothing to do with the EMI generated.
I contacted HDFC bank customer service and told the same issue and they told like they cannot cancel the EMI and it is from the merchant end.
But my EMI statement is still active in my account. I don't know what to do further on this for not debiting my amount on unnecessary order.