Went to GRAFF today and discovered the finance man...

Went to GRAFF today and discovered the finance manager is full of attitude, unprofessionalism as well as uneducated when it comes to company policies. I was told by a GM Warranty representative I could go to any GM dealership to verify mileage in order to receive a refund on an extended warranty after selling my vehicle before it had expired. I took it to GRAFF Chevrolet and spoke with the finance manager who told me I should return to the dealership I bought it from and that they were the only one who could issue a me a refund, so after calling back to the GM Warranty hotline and talking to another representative, they once again told me any GM dealership could verify the mileage and sign the proper paperwork. I told this to the finance manager and handed him my phone to speak with the rep, and he stomps off to his office and begins loudly arguing with the guy on my phone. A short time later he came back handed me the phone and walked off without saying anything. "I don't know what's going on with him but, it's unprofessional" I said to the rep on the phone, "Yeah, I'll say so!" he agreed. In the end the finance manager reluctantly did the paper work while angrily telling me it wasn't going to work and that he had never done this before, worked there for ten years etc. Individuals like this give an entire company a bad name, because until today I had no bad thoughts about GRAFF and would have recommended anyone to them. Further more I had a car painted there last week, and it turned out great. However I will NEVER return to GRAFF on account of the way this guy conducted himself with me. Here's some thoughtful advice for you, it may help business for you to smile a bit and hold yourself in a professional and cordial manner, not only to repeat customers like myself who pay for your services and purchase your vehicles, but to anyone who walks into your sales office for that matter. I can honestly say, I've had nicer service while being booked into the Dallas jail than I received at Graff Chevrolet today.