Business ProfileforZeigler Chevrolet of Schaumburg

My wife and I found a car on Zeigler ***** in Schaumburg. I submitted a form online. A rep called me back and we discussed interest rates and the car. I was told that I need to come by in order to check the rates. ******* asked me what time I can be there, I said around 5:30-6pm. She said she will get the car ready for me and will see me later. I got a call from her around 5:45 and let her know I am leaving the house and considering its rush hour its going to take me about 30 minutes to get there. I ended up going to Zeigler Doge, about 5 minutes from ***** location by accident. I called and spoke to ******* and told her im almost there. When we got there, at 6:15pm, the person sitting behind the customer service front desk didnt even say a word, he saw us, but said nothing. Finally someone came up and I let them know I need to speak with *******. She never came out. But I was told that a few minutes ago another person walked in, no online reservation as with me, and took the car for a test drive. We are in shock. But we wait. And wait. We waited for 25 minutes during which ******* called me again. I let her know what the situation was and she said just wait. Finally the other people came back. We took the car for a spin around the block. Took us 6 minutes. We came back and the other people purchased the car we reserved. We spent 2 hours on this whole trip. Left kids at home. And came back without a car. To say I am disappointed is understatement. I have never received such horrible customer service in all my years of buying cars. So today I called to speak with a sales manager. Left a message with the phone operator and was told someone will call me back. They did, but I was on a call. I called back about 15 minutes later, was put on hold, then disconnected. I have now called there 5 times and no one is picking up the phone. They dont even want to talk to me. What kind of a business is this?