general problems of the 2003 Nissan Xterra

Purchased mastercraft courser a/t2 265/70r16 tires 9/13/2007, took to mechanic for shimmy, was informed that belts in tires shifted, brought to town fair tire in westfield, MA. Balanced tires sent me on my way, went back 2 weeks later for same problem, was informed that there was a safety concern, however it still cost me $322. 01 with old tires being prorated. I only had 12000 miles on the tires and if it was a safety concern shouldn't the tires been covered under a recall or workmanship warranty. I did check for recalls different size tire had a recall for belt shifting in tire, however this size was not affected by recall. I feel this is a problem and I am very upset that I had to pay for the problem with could have been worse. So in less than two years I had to spend almost $900. 00 with one set being prorated on tires. . . . Very concerned very upset. Please note this was a problem on more than one tire.