Speedometer repair service near Lubbock, TX

My college daughter took her car to this shop in Lubbock while she was attending Texas Tech. Her car would not start. Mr. Ho charged her $650.06. She paid the bill and attempted to drive home and the car was acting the same way showing no difference since repairs. She got home and we took the vehicle to a shop in San Antonio. They were able to determine that the only problem her vehicle had was a dead cell battery. This shop in Lubbock not only charged her for unneeded repairs but also broke the green connector. We had to pay another $666.44 to get her car drivable. I sent Mr. Ho the business owner a certified letter to help resolve the issue but he was unwilling to take ownership of the poor service and unneeded repairs to take responsbility for the damge his shop caused. I took advantage of a young college student. She has since graduated and working back home but we don't want this happening to anyone else. I don't see how this man stays in business. I strongly encourage anyone to look elsewhere for car repairs. They don't guarantee their work and are not willing to accept responsibility while the other shop in SA was willing to show and proof the unecessary cost we incurred from this Lubbock shop.