I got a ride from mccarran airport from Johannes Biniam with yellow checker star cab, I got out of the vehicle and he asked how I wanted to pay, I said credit card, he told me he would run the car himself, took my card and asked me if I wanted a receipt (especially because I wanted to see what he did tip wise) and I saw that he gave himself a tip which is illegal. The cab company at first offered me a full refund yesterday because what the driver did was illegal, but they only refunded the tip. I need to figure out where the uber pickup is in the future.