Confession: I'm drawn to the drama of this story, but have encountered bad customer service like most people. (I've had no dealings with NS for the record) I would certainly hope that the OP didn't get something back from NS with a note that read "screw this guy" (or similar) written on it. If so, it would add "careless & insulting" to the list of issues with their customer service team. Normally, I can't stand seeing "smear" posts on CGN and prefer issues like this be dealt with privately, but if everything the OP stated is true, I don't blame him at all for posting.
As cliché as it sounds, the internet has a way of making the world a small place. All businesses exploit it to drive sales numbers (understandably) but on the flip side...it puts poor customer service under a microscope pretty quickly too. I think you lose a little credibility when you're available to "sell sell sell" then hide behind a curtain when things go sideways.