Yokohama Tires...crap on the road

I purchased tires from Flynn's approximately a year ago. After only 13000 miles of what I thought was a 40000 mile warranty, they wore out. They say there was no alignment done to the front and the backs were over inflated. There was an alignment done and frequent oil changes during which the tire pressure was checked. I have the paperwork proving this, but, because Yokahama is across the country, they are saying that there is nothing they can do. How convenient. Now, if I had bought discount tires for basic driving, OK. These tires, however, are designed for all terrains with an extra deep center groove for traction. To me that translates to a heavier wear tire, not 1 year throw-aways. As far as I am concerned, I will not do business with either of these companies again, and will inform every friend, relative, car buff and tuner enthusiast I know to stay away from them. It's a shame, that a person has to get a lawyer just to make people honor their own warranted promises.