Get your Uber act together

My ride did not arrive, but billed me anyway. This was later reversed. I booked a second ride, who arrived promptly and drove me to my destination without a hitch. However, in the 45 minutes between the bookings, I found the Uber website frustratingly non-intuitive and unhelpful in my efforts to resolve my stranded situation. If I were headed for an appointment, this would have disastrous. The amount I was invoiced was more than 30% more than the quoted fare. My stay is almost over and I have a 07h15 flight in two days and have made another arrangement simply because of the unreliable service before.