I wrote a really long complaint email and they "resolved" it by crediting my account with $20 credit. I ended up paying like $110 for that ride. It would have been about half at the 1.75x rate, and about a third without the surge pricing.
Uber never tells customers when they penalize drivers, so I hope you aren't assuming that the $20 credit was the sole response to your complaint. I expect that the driver was disciplined in some fashion, and that if they accrue repeated complaints for canceling they would be suspended (similar to how drivers that get repeated sub-5-star ratings do).
