I had a very bad experience with vistara. I booked a flight for 08th feb from dehradun to delhi(PNR-UYA562) They suddenly rescheduled my flight for 9 th with out giving me an option of cancellation, or date change. Their customer care services are poor and meant only for business class. Since it was necessary to travel on 8th I had to make alternative arrangements at last moment. My rescheduled flight which I didn't take was neither refunded nor their was any response from customer care team.