Can't rate delivery persons after they cancelled the order on their end. Happened 3 times to me, always a large order for a group of nurses after we've been waiting for 1hr at least. It's not a safety issue and I don't need Uber involved or the driver banned, I just want to ability to rate the driver appropriately down for failing to deliver. Every agent so far thinks I still can rate them, they don't even know their app.