Be careful when buying a vehicle here

I had an appointment to meet with a sales person as I needed to buy a car. On arrival, I called him and he told me he was busy with a test drive and would call me back when he returns. When he retuned he didn’t call me back, he just continued doing what he was doing, I guess he didn’t even notice it was me who called me because he kept passing without saying anything to me. After over an hour of waiting I decided to ask for help from a different sales person. We went through the process of application, and signed all the documentation required. After this, I started to receive bad service, ignored calls and messages. I struggled with delivery of my new car, which arrived later than expected. And currently struggling to get updates on my car getting fixed as it has faults