Yeah, basically they decided that if you're a small company they can steal all your money because you can't do anything to them. I emailed these clowns when I noticed this change back in January and they told me that there's no fee if you make more than $2500 in sales per month - so it's a deliberate shakedown of smaller merchants who may not check their accounts frequently. I typed up half a vitriolic reply to that forgeter then sort of lost steam.
Anyway, rather than figure out what magic combination of mouse clicks would deactivate my account, I simply raised the price beyond what anyone would pay. My rage is now rekindled and I am going finish editing the article.