UBER Overcharge for trips, fraudulently bill for driver cancelled-trips, repeated instances, obscure cancellation methods San Francisco CA

Instance 1.  Miami call for Uber, cancelled by driver/no show, I was billed.

Instance 2. Miami call for Uber, cancelled by driver/no show, I was billed.

Instance 3. Miami trip from Downtown to Airport, charged about $12 more than the app priced the trip at.

Instance 4. Miami trip from Downtown to Airport, overcharged with trip billed as from Downtown all the way past the airport to West Miami, twice the distance.

Instance 5.  Followed instructions to schedule ride, instead of scheduling for later, it immediately assigned a driver with only two minutes to cancel, with no obvious button to cancel before being charged "for the driver's effort"

Uber is the worst ever customer service, fraudulent charges, unfriendliest app I've ever used, seem to be 100% trying to extort the money from both riders and drivers, unbelievable!