Called and setup appointment with champion windows...

Called and setup appointment with champion windows. I took off work and drove 40minutes to meet with sales rep. The rep did not show and did not call. I call the office. I was told they would call the rep and call me back in a few minutes. I waited 30 minutes but no one showed or called and then had to drive 40 minutes back to work.
I call back the next day to find out why I did not receive a call and why the rep did not show. I was told the same thing; the district manager would get back to me in a few minutes. No one ever called back.
This is an unprofessional company. I do not know how they stay in business if they blow off perspective customers.