Zoomcar — Excess fuel refund not provided despite photos and proof

I booked a car from Zoomcar from Friday 7 April 2023. I uploaded the start fuel and odometer reading (about 5% fuel) directly on zoomcar's app (which I cannot access now) and the end fuel reading, which was 100% (their app mentioned tank had to be full when returning the car so I filled it, trusting zoomcar to provide the refund). The start fuel level as reported by the host is 10%, close to what I reported. But now Zoomcar has refused to provide a refund for the excess fuel. When claiming the refund, zoomcar refused to acknowledge the start meter readings and refused to provide refund for fuel, which is atleast 90% of the tank (if you go by the host's initial report). I directly uploaded the odometer's photo to their platform and there's no way for me to access it now and they will not acknowledge it. On top of that, they do not even acknowledge the host's reported initial fuel reading of 10%, which means I should get 90% of the fuel back, worth about 3000 rupees. They are deliberately refusing to believe both me and the host's reported starting fuel reading despite providing all the evidence. They even refuse to send me the original photo that I uploaded to their app, which will prove the initial fuel reading and reveal their lie. This is how they misuse their customer's trust and cheat them out of their hard earned money. 3000 is a big amount for me, please help me get my money back.