The billing threshold was formerly $15/quarter; now it's $30. I don't have a CC stored on my account, and have never hit the threshold for them to mail/email me a bill. I think they asked for a CC, but I saw the option for 'just bill me and I'll send a check'.

> Seems like an easy way to game the system...just sign up for a new account every quarter.

As I recall, they mailed me something via the USPS before my account was activated. I don't think it'd be very smart to intentionally rack up charges with the branch of government responsible for putting people in cages, and think you could just walk away from those charges.