they just refused to honor it. Apparently if you don't have every single oil change receipt they can do that, even though nowhere does it say you have to keep them. I bought the car less than a year old, and they sold me the extended warranty, yet even insisted on the receipts from the first owner, which they did not give me. That was pretty awesome of them. I'll never buy another Nissan again, which is a shame, because I loved my first one. Hell, I like this one except for the whole spending 10k on a car under warranty thing.