Uber India — 350/- gets deducted even when cab is not booked

I try booking cab. ₹350 is put on hold. But cab doesn't get booked because cabs are not available. So i try booking cab again. Another ₹350 gets on hold. So now ₹700 is on hold and cab still not booked because cabs are not available. I try again. Same thing. So now ₹1050 is on hold and paytm balance is around 100. So i cannot book a cab unless i change payment option. Why are you putting money on hold even when cab is not booked?
I have raised this question in app. But none are able to understand the simple query.