Arbitrage Question, Carhartt

Hello my fellow Amazon Sellers,

I was wondering if anyone had any experience with Carhartt and whether or not it was reseller friendly? I received one of those scary letters in my customer messages. It’s not exactly a cease and desist, it’s from an LLC but, it’s something along those lines. I’ve been selling Carhartt for over a year with no issues. Wondering if anyone had dealt this this issue specifically with Carhartt? TIA.