2010 FORD E-150 Wheels Problems

AFTER STARTING MY VAN ON THE MORNING OF 02/06/2014, MY LOW TIRE PRESSURE MONITOR ALERTED ME OF LOW AIR PRESSURE IN ONE OF MY TIRES. I CHECKED MY TIRES TO SEE WHICH TIRE WAS LOW, AND NOTICED THE TREAD SEPARATING FROM THE LEFT REAR TIRE. BECAUSE OF THIS TIRE CONDITION I INSPECTED MY OTHER THREE TIRES AND NOTICED ALL OF THE TIRES HAD SLIGHT TREAD SEPARATION. I QUICKLY MADE AN APPOINTMENT TO REPLACE ALL FOUR TIRES AT BELLE TIRE OF BELLEVILLE, MI. AT THIS TIME I WASN'T AWARE OF ANY RECALL ON MY TIRES. AFTER READING AN ARTICLE ABOUT TIRE RECALLS ON FEB,24 2014 FOR MY VEHICLE, I CALLED MICHELIN TO SEE IF MY TIRES WERE PART OF THE RECALL, BUT WITHOUT THE OLD TIRES I COULD NOT PROVE THE TYPE OF TIRE I HAD, THEY WOULD NOT PAY FOR THE REPLACEMENT OF MY TIRES. OKAY I UNDERSTAND THAT, BUT...