NHTSA Complaint #10280399 — 2008 NISSAN ALTIMA

I BOUGHT MY 2008 NISSAN ALTIMA FROM CHAMPION NISSAN,KATY,TEXAS. I PAID $2000 FOR FOUR BOSS WHEELS AND TIRES. AT 15,000 MILES, I HAD TWO TIRES FALL APART AND HAVE BELTS TO SEPARATE MAKING THE CAR UN-DRIVABLE. NOW I HAVE A THIRD TIRE WHICH SEEMS LIKE IT IS TRYING TO DO THE SAME;HOWEVER, I HAVE HAD TO STOP DRIVING THE CAR FOR SAFETY REASONS. I CONTACTED CHAMPION NISSAN(281-644-1100 ) AND SPOKE WITH TWO MANAGERS,RAFAEL AND PHIL;, AND HAVE BEEN PUT OFF FOR TEN DAYS NOW BECAUSE THEY ARE TRYING TO PASS THE BUCK TO THE VENDOR WHICH SOLD THEM THE BOSS WHEELS W/ TIRES. THEY HAVE FOUND OUT THAT THE BUSINESS IS NOW "OUT OF BUSINESS" AND THEY SEEM TO BE IN MEETINGS ALL THE TIME. CAN SOMEONE HELP ME CONVINCE THEM THAT SINCE THE CAR WAS PURCHASED WITH THE NO GOOD TIRES FROM THEM, THEY OUGHT TO PUT DECENT TIRES ON MY CAR SO I CAN DRIVE IT? THE WARRANTY BOOK THEY GAVE ME DESCRIBES GOODYEAR, BF GOODRICH AND DUNLOP TIRES....NOTHING IS MENTIONED ABOUT NANKANG TIRES. HELP! *TR