Hertz Rental Car Hertz made me waste my time Knoxville Tennessee

I want to make a complain. I set up a timing for a Hetz's representative to pick me up on a car service shop. I booked with Hertz 6285 Clinton Highway, North Knoxville, Knoxville, TN 37912 at 4:00 pm at the car shop. It was around 5:00 pm and I even did not receive any call from them saying what happened. I called them, they said somebody was coming. I did not apologize also. This is a very bad attitude done by a such big company like Hertz. That was a very unsuspected way to treat a customer. I am really disappointed with hertz. Luciano Nascimento