Zoomcar — fuel refund is taking too long

This is regarding the zoomcar customer care and it's app. I had booked a car with fuel 2 weeks back and they provided me car without fuel (Very less fuel). Ok that's fine then I got it filled from the petrol pump. While closing the booking we have a option to submit fuel bill. I did that and I got an message that it will be processed within next 13 hours. But till now I didn't get any update for the fuel refund.

I have reached out to them many times using email functionality that is present in their app. But once I raise some concern through email I won't get any confirmation that they are working on it or something like that.

I have called them many times. When I call them it get automatically disconnected if I press 6 to talk with customer support guy.

I have reached out to them in Goggle Play as well. They said they are looking into it. That's it. It's been more than 2 weeks. I had to get the car with fuel and now if I got it filled they are taking time for refund. Not sure how they are working and it's really frustrating to reach out to them again and again.