Yeah specifically when I signed up they did the a small charge then, I assumed it only ever do a single charge to check for the legitimacy of the card. If I ever wanted to do a paid tier, I would have changed the card details. But it was a week later that they did a second check even though I hadn't done anything that would incur a charge. The card I had setup with privacy was a charge once card that immediately closes after the first transaction is completed (including charges that are canceled.) So the second charge hit the card after the card was closed. At that point they decided the card must have been stolen and decided to permanently close my account with no recourse.

My guess in the end is they just don't care, I'm not the one that would be giving them lots of money, business contracts are. But they are wrong in the sense that I will never let any company I ever work for choose them if I have any say in the matter.