Brought my Veloster turbo in with transmission pro...

Brought my Veloster turbo in with transmission problems. They quoted me about $1200 for repairs. They did the work then called me that the car is still having the same issues with it and didnt know why it was doing it. Then they called me to tell me it needs even more parts which now brought the price up to $2800. It was like they were throwing parts at the problem hoping one would fix it. I find it hard to believe that the shift solenoids, the transmission wiring harness and the transmission computer all went bad at the same time. It was a bit discouraging that the service consultant said that she personally test drove the car cause she didnt trust the service techs. My wife picked up the car today 7/3/20. She drove it home and and complained of a noise coming from under the car. I found the problem. The front driver side wheel well liner was not reattached properly and is dragging on the ground and the tire has shredded it. That is only issue one. I then opened the hood up and noticed right away that the engine cover is no longer there. The air intake was poorly reattached. None of the bolts had been tightened to hold it in place. Rev the engine and the intake shakes and rattles. Paid $2800 for service repairs and this is the quality of work I recieved. Completely unacceptable. Now I have to drive back to the dealership to retrieve the missing engine cover and have them replace the wheel well liner that is now destroyed.