I took an Uber yesterday for a short journey and when I got back, I got an email thanking me for my payment of the fare, and then another one thanking me for the £3 tip.
This isn't about the ins and outs of the etiquette around tipping but I'm really annoyed that either Uber (or the driver...?) are able to just add on and take an amount of their choosing from my card.
Has anyone else had this happen?