Problems with 2001 Toyota Avalon WHEELS

On 4/21/14, i purchased 2 crosswind tires. the seller gave me, in writing, tread wear warranty of 50,000 miles. however, i have only driven approx. 19,000 miles and 90% of treads are gone. i have contacted the seller, he told me to contact the manufacturer. the manufacturer refused to honor their warranty. i even contacted my credit card co. to help, but they refused it too. it is dangerous to drive on these tires. i paid $129.00 plus $40.00 for installation. please help me get my money back.

Check tire pressure usually the first week of the month and never had problem of tires losing 60% of air between checkups. i thought that there was a puncture and took it to discount tire in romeoville(where i bought yokohama tires). checked all the four tires and found no nails or other. they however found two wheels with corrosion(white flaking) and they suggested that i replace the wheels for this weather damage will only accelerate. these are supposed to be alloy wheels and how can there be weather damage. i had all the four wheels ground and buffed. six months later, air leakage was back with vengeance and since it cost me only $19.00 a wheel to grind and buff - i have been doing this instead of shelling over $500.00 to have the wheels replaced. these wheels are not genuine toyota. i had celica st back in the 70s and 80s and i had none of this nonsense with its alloy wheels. *tr

There is constant vibration at 60-75 mph, and vehicle pulls to the left, seldom to the right. dealer replaced tires and rims, it did not remedy the problem.*ak two tires showed excessive wear and were replaced. while driving the lug nuts caps fell off and were replaced. *yh