UBER SCAM?

I recently returned to Uber as a product. I used them in Paris to get to Charles De Gaulle from St. Germain. Booked UberPool and waited. Driver was showing 5 mins away then suddenly he cancels the trip. I then re book and get same driver and he shows up at the pick up point two minutes later. Think nothing more of it until I get the €5 cancellation fee on my credit card.

Turns out drivers are cancelling trips to claim the easy €5 and then reaccepting the same customers, thereby getting effectively a €5 tip.

Anyone else have similar negative experiences on Uber? Thanks in advance.