I have had Uber drivers fail to show up multiple times. They appear to be heading to the pickup point but then park some distance away and just wait. It's very

I have had Uber drivers fail to show up multiple times. They appear to be heading to the pickup point but then park some distance away and just wait. It's very frustrating. I've never had that experience with a taxi service. It's nothing to do with my Uber rating. I've since learned that it has something to do with a scam involving short/undesirable trips and cancellation fees.