Oil Change & Tire Rotation

I had my oil changed & tires rotated twice @ Kwik Kar Oil & Lube in Carthage, TX. I went to Pippen Chevrolet in Carthage, TX to have my oil changed & tires rotated because they (Pippen) will do the work for 1/2 of what it cost @ Kwik Kar. I orginaly started with Pippen by taking my wife Suburban there. That is how I came to the knowledge of the price difference. The last time I took my Ford into Kwik Kar, they stripped my oil drain plug out. I didn't find this out till Pippen brought it to my attention. This being the first time Pippen had touched my Ford, I knew they had not stripped the plug. I called Kwik Kar to bring me a replacement plug. They did so after making me wait 1 hr. I was also charged $5 for the drain plug. In my opinion, I should have not been charged for something that I didn't no mess up. I refuse to go to a place that charges double on the exact same service. Their customer service is sub-par in my opinion also.