Apparently now a surge price can be applied if something goes wrong in your trip. I picked one fare and then a 1.9x surge was applied mid-trip. It took three emails before customer service applied the difference back to my account. The reason they gave was that the actual pickup and destination was different from what I entered. Well, Ubers gps hardly ever actually gets the exact spots right anyway so the fact that I have to tell the driver precisely where to stop seems to now count against me. Be careful and watch what the fare you choose up front is and compare to the actual fare charged.
Julesverne1492 about Uber, v3.242.4