treadwear issues help

ssmoked

Thanks for the replies. I know the tires are only warrantied for 22k miles bc it's staggered. My major concern is the premature wear in the center of the tire only. I had discount tire store deflated to 31 psi hoping to correct the issue, but with no luck. From my knowledge, center wear is only caused by overinflation, right?
Btw, my stock tires wore as it should for 10k miles, with the inside wearing out faster than outside due to negative camber.