Bajaj Finance — Unexpected EMI extension

I purchased a laptop through Bajaj Finserv for Rs.121, 490, with a down payment of Rs.43, 774. I opted for a 9-month EMI plan, where I was informed that I would pay Rs.8, 100 per month for nine months. June 2025 was supposed to be my final payment, as per the initial agreement. However, the app now shows that I need to make an additional payment of Rs.8, 100 for the next month, which contradicts the original terms.