regardless, all boxed bikes sold in the USA are required to be assembled by a 'qualified' bike mechanic. Consumer Product Safety Commision requires this, and is on every bike container and bike owners' manual I've ever seen.

Unless he's working as a bike mechanic or holds certification from BTI, he's NOT QUALIFIED, legally, to assemble the bike.

Since the OP assembled his bike at home, his claims of warranty issues are likely null-and-void because he violated on of the prime tenents on bike warranties in the USA- the other being 'original owner with receipt'

blow either of those two caveats, any warranty claims on bikes are pretty much readily and legally deniable by the manufacturer.

people come in with second owner bikes all the time, looking for that 'lifetime frame warranty.'