What recourse do I have available for a floor that hasn't held up if the manufacturer is not honoring it's warranty.

Paid $9000 for floor, months later began noticing gouges, nicks and the finish wearing off throughout. The installer referred me to the manufacturer, who inspected it and gave me 3 boxes of replacement tile and $350 for labor (no contracted will come out for that, I tried). Now the finish is completely worn off and turns our feet black when we walk on it. I can mop my floor meticulously all day long, and it will still turn our feet black because without the finish, the tile itself is turning our feet black. My Congoleum Duraceramic floor supposedly has a warranty for 10 years. It fell apart in less than two, and now it's between 3 and 4 years old. Congoleum has washed their hands of it, and I'm stuck replacing my floor, or living with a gouged up, dinged up scuffed up floor with no finish that turns your feet black. (Before this I had a laminate floor for years with no gouges, dings, scratches, or problems with the finish.