Pathetic service

When I bought my first car, a Kia Picanto from Springfield Durban in 2022, I was initially given the incorrect car. Three days later, the branch manager picked it up, and the wrong car was swapped out for the right one. After a few days of driving, I observed that the passenger and driver side windows would rattle. Since this was a brand-new car, I was concerned about this. When I got in touch with the dealership, they suggested that I take the car in for a service so that mechanics could examine it. The rattle remained when experts examined the car and I picked it up. After chatting with the financial manager, I learned that the car's 'basic' model actually means that the windows rattle, so I made another trip to the dealership to address the gear issue. Could someone please explain how that makes sense? A new car with windows that rattle and no one is bothered to fix? I guess I will just drive around with rattling windows. Well done, Durban KIA Springfield.