My truck had a little wiring harness thing, sorry I don't know what the name of it was, melt once. The part was $160 dollars. I took the truck to a shade tree mechanic, he picked up the part, and charged me $10 to put it on. A year or two later my truck was recalled for the problem. The letter said if I had already made the repair to bring the receipt to the dealer. I did, the receipt was scrawled on piece of carbon paper. It looked about like what you would get at a mom and pop reatraunt. The receipt was for $170 some odd dollars. The dealer said they couldn't honor the receipt. Kinda insinuated that I could easily have just wrote the receipt myself. I hate to get mad, so most of the time I just don't. I left, and filed the receipt and the letter at home with the rest of my farm records. A couple years later when it was time to buy a new truck, I went to the same dealership. Made the best deal I could, and went to the little office to pay for it. Just as we got to the nitty gritty of writing the check, I pulled out my receipt, and letter, I told them I hate to sound like a jack ass, but we would need to settle my dispute over the harness before I paid. They knocked the $170 some odd dollars off the price of the truck. I know that is a long drawn out story, but I just couldn't let it go.