KIA Motors review: 3 out of 4 windows do not work.

I have a 2016 Kia Optima and at the moment they are being held up with duct tape. When the first window broke my wife took it to the dealer to get fixed. A service tech used some kind of tape to hold window up until repaired. The service manager call with a estimate of around $2500 to repair. The tape they used to hold window up took a quarter size chunk of paint off the drivers side door. When my wife returned to dealership to show them that the tape had removed some paint the service tech complained that he would have to fix the paint removal out of his pocket which I find that hard to believe. Since the first window will not stay up, we now have 3 window that have to be taped to stay up. I have found numerous complaints about the window regulators and a copy of a Technical Service Bulletin from Kia about this issue and affected VIN numbers. I also found a number of class action lawsuits regarding the same issue which I plan on contacting that Firm to be included if I can not get this issue resolved. Look forward to your response before any further action is needed.