advice needed - faulty kumho ecstra spt's

[vanquis1979]

bought a vec last week with 4 x kumho ecstra spt's fitted 4 months ago covered 6000 miles the rears have worn really badly but in a strange way the only reason i have noticed is i was having a rear bearing done today untill the garage said nothing wrong with it they think its tyres so we put the rears on the front and yep the noise is now at the front my question is can i get em replaced under warrenty?? thanks

[plasma]

Tyres would have probably feathered due to the rear alignment of the car being out and/or due to worn upper control arms.