Kyner's Auto Terrible customer service and cost me 600 because they messed up the oil change Chambersburg Pennsylvania

I bought a 2008 BMW 328i around July 7th, 2018. A few days after purchasing the vehicle, we noticed a little shaking in the engine. I wasn't too concerned, but a few days after that the car stopped in the intersection. I live 50 miles away from Kyner's, so I took the vehicle into my mechanic. I wasn't worried about making Kyner's pay for the damages. It was a used car and fairly old, so figured there would be issues and I may need to put a little money into the car. I was hoping it wouldn't be less than a month owning the vehicle, but oh well. The mechanic read the faults and said it was a CamShaft sensor issue. That set me back almost $500. I was bummed, but wasn't overly mad about the issue, I was just happy to be able to drive it again. A few days after getting the car fixed, the same issue started happening again. I was now a little more concerned, but again, I just took the vehicle into my mechanic because it was stalling out in the intersection and I wasn't going to drive it 50 miles. My mechanic took a deeper dive into the issue and performed more tests. Found out the last people to change the oil lost the cap and the car wasn't getting enough oil pressure, which caused the cam shaft to fail and continued to cause issues. At this point, I was now mad because Kyner's auto was the last people to change the oil. Once I found this out I contacted their service department and spoke with Shaun. He was less than helpful and had an attitude that it was my fault because I didn't contact Kyner's first. Uh no! It was your fault for not changing the oil properly. Basically Kyner's doesn't stand behind their service. Worst dealership I have ever had to deal with and now I am seeking legal advice against them. Take your money elsewhere. They are sneaky sales people and super nice until they need to be held accountable and all the sudden, they are as slimy as they come.