Tire Pressure Monitoring System problems of the 2003 Honda Accord

We purchased 4 new tires from merchant tires in thomasville, nc on 7/7/07. On 9/8/08 we had to replace a tire because of a valve stem failure which the company didn't tell us. The tire had a bulge on the side wall because they were low profile tires and my wife didn't notice the tire was low because of the valve stem. From her driving on the tire it caused the side wall damage. My wife tried fix a flat but she said the valve stem was barley hanging on so she could use fix a flat. After that incident a week later on 9/14/08 I had to take another tire to merchants to get fixed and this time it wasn't damaged and I was told by merchants it was a valve stem and that was all it needed. Today 10/10/08 I noticed a warning issue on merchants website issued because of dill valve stems. I asked them how do I get a refund for the tire I had to replace because of the tire. He informed all complaints need to go to dill air controlled products. So I found this form on another internet site with people having the same issues. So now I want someone to refund my money for the purchase of my new tire that I had to buy which was caused by the faulty valve stems.