North Sylva and the dealers they have sold to have stated multiple times publicly, and in this forum, that they are standing by their grey market guns. If they are turning around and not actually supporting customers, then affected grey market owners should file a complaint with the BBB, leave a negative review on Google, and try to seek some kind of store credit from the store that sold them a grey market gun.
It's definitely shady for a distributor to knowingly bring in grey market guns and sell them knowing full well that they are not covered under the official lifetime warranty. But NS is probably going to delete this thread any minute to squash any negative opinions or stories about their business practices.