AutoNation Hyundai Corpus Christi

Had the Slave Clutch Cylinder blow on my 2010 Hyundai Genesis Coupe. Called the parts department, ordered the clutch, was never asked if my car was under warranty. This would have saved me from buying the part, having my car towed twice (to my house then to the dealer) and finding out from the service department that my car was covered after all. When I got my car back, she had problems with bouncing in the front end. Service man test drove before and after I arrived. He said it was my tires and took my car back for some kind of machine testing. When he brought my car back up, the front tire had been switched to the back. Gen Coupes are not supposed to have the tires rotated. He asked me who switched the tires. The car was at Hyundai for over a week. Who else? I've had so many difficulties at this service department as well as the detail department. I'm done with Hyundai. Nobody cares anymore and I was blamed for the tires being rotated? By the way, the front end is still bouncing. Service man informed me the struts and shocks are not covered by warranty which is why I will be taking my Mildred somewhere else. Also, every time my car has been in the shop, they tell me my oil is bad. What the heck does that mean? I always change my oil regularly.