One fault on Vehilce purchased left with permanent Damages.

I purchased a Kia Picanto and discovered a very bad wind noise on the drivers side door, they had the door fixed so badly more damages were made by repair panelbeaters they send my vehicle to, they then sent the vehicle to another panelbeater to fix the first panelbeaters mess nearly a month later and my vehicle is completed ruined with paint overspray and severe scratches. Sent to panelbeater vehicle damaged Sent to another panelbeater to repair first panelbeaters damages. Vehicle returned with overspray and severed scratch damages. This they did not pick up as the vehicle had just been buffed and delivered to me, so all looked good, so I thought. After dust getting on my vehicle I discovered all the damages. From a bent door with a windnoise my vehicle is severley scratched., paint oversprayed all over. I now have a damaged vehicle. All due to as I was told . so sorry we have had management problem, at Imperial the Glen. I am heartbroken dissapointed as it has cost me my lifesavings to purchase what i thought would be a blessing of my new little car. Although they have really tried to assist my vehicle is RUINED, DAMAGED and now a panelbeated wreck!!! So where to now, driving a paint over sprayed scratched vehicle and cannot even use my back windcreen wiper as the back windscreen is covered in paint. I AM HEARTBROKEN!!