Robert Basil Cadillac

I attempted to make a simple $400.00 claim against the Basil "free engines for life warranty". The claim was denied because of a missed tire rotation. The "free engines for life" warranty, which is backed by National Auto Care, Westerville, Ohio, requires the vehicle owner to have all oil changes and tire rotations performed by the dealer. Every oil change and tire rotation was performed by Robert Basil Cadillac since the day the vehicle was purchased in 2011. Because Robert Basil Cadillac failed to rotate the tires on one occasion, National Auto Care denied the claim for the engine repair. What does a tire rotation have to do with the operation of the engine? Why did the dealer fail to rotate the tires during the scheduled oil change? I used to be a loyal Basil customer, but not anymore. I purchased a Cadillac and a Lincoln from the Basil family of dealerships and I am now having both of these vehicles serviced by a local repair center due to my complete disappointment with the Robert Basil service team and their insurance company, National Auto Care.