Uber India — Trip Not Completed but charged

I booked an Uber to travel from Worli to Matunga Gym on Sep 28, 22 at 7:06 pm. The ride was confirmed at around 7.20 after which the driver reached for pickup around 7.35. Soon after the start, he asked whether he can fill gas. I was already late and refused permission. He kept insisting that he needed to fill gas. I was already late and refused repeated. I noticed that he was on the right lane when he had to go left. When I told him to keep left, he said there was a gas station on the right. It would be a full detour if he turned right. I refused permission and asked him to cancel the ride if he insisted on filling gas. He didn't cancel. Finally at the signal for turning right at Worli naka, I had to get out of the cab. This was barely 1 km from pickup point. I could not find an option to cancel the trip once started. I was charged for a trip that was not completed. I filed a complaint with Uber asking for a full refund within 30 minutes, but there has been no response till date. Also, on the app, there is no option for asking for a refund for "Trip not completed" or any other reason apart from some limited feedback issues. There is also no option to cancel the ride due to issues during the ride. I am quite sure that the driver was aware of lacunae in Uber complaints and was exploiting the loophole to get paid for a trip that he had no intention of completing. In addition to your site, if there is a official government Road & Transport site where complaints can be lodged, please advise.