Zoomcar — Threadting messages & Fake fee being asked from the company

I Nishant Singh Booked a self rental car from zoom car from 12 nov 5am to 13 nov 9pm (ID: JPSN76VGQ), for which I have made the advance payment of full amount of Rs. 5000. And after completion of the trip I have received an email as well that your account is settled and there aren't any outstanding fee. And they also returned the additional fuel fee, because I refueled the car on completion of the trip (85-90%) way more than what I got at the start (5-10%) of the trip.

Now, they are asking me to pay Rs 1, 119 for no reason. And they are sending threat messages on my whatsapp number that if will not pay them that amount they will file a case against me. When I'm asking why I have to pay this money when the account was settled on the completion of the trip then they are not explaining anything and just repeating that if I will not pay the money they will a case.

I need urgent help on this, as this is clearly a fraud act.