Unprofessional and poor customer service

I checked one vehicle through Webuycars website that I want to test drive and visited Webuycars Midstream branch. When I visit, I had to approach one of the sales person, because no one pay attention to me. And that sales man took my private information(took driver license photo) which I am not that happy and took my number and said he will call me when he found the vehicle. After few minutes later, I met him on the floor again and he said he couldn't find vehicle. That is it?? He just collected my personal information and gone!! Before I go home, I asked one the guy who are sitting on desk near the entrance and I told him that I couldn't get help from your sales man. And he introduce me to another sales man who helped me very well and found the car!! But after all the hassle, I test drove and I liked the drive. But the problem is from the website photo, I loved the car because it has roof rack carrier and tow bar at the back. But it has gone?? Someone took them out of vehicle? I never heard second hand dearer took existing accessory and sell the car? And I asked the sales man that they must give me discount. And he didn't get back to me yet.. Now after they remove existing towbar, rear bumper where towbar was, looked ugly. I guess when they removed it, they damaged the rear bumper. And attractive roof rack carrier is gone for sale??? You are the biggest vehicle reseller but don't want to talk about any discount from the problem that you guys caused?? Maybe you have enough customer to buy the car and become too arrogant?? Without thinking each an every customer as a important person you will lose customer one by one..