Uber India — faulty gps & overcharging

We have been preferring uber over ola but on 16th (Thursday) of this month, we had a bad experience when we travelled from palam vihar, gurgaon to cremation grounds 'malvia nagar, new delhi. Journey was starting at about 12 hrs. It was by ritz (Maruti suzuki) car with no. Hr62 8082 or 8280 (Not sure) with driver's name"gagan". The charges as per ur msg. Were rs 487 or so. The driver kept on changing the route saying that the map is showing traffic on given route (S). More - over near the destination, he kept on taking rounds /u turns & we have to check from peoples time & again resulting into delay & our missing of main rituals. Then he asked & took rs.630/ instead of notified amount of 487/. Pl. Look into this & compensate us fully for the over charge, delay caused & our missing of the ceremony. Thanks!!-s k khanna