I've had a linode for a few months now. Last month we went over the (600GB) limit by 50GB or so, but linode didn't charge us or, throttle us, or even contact us

I've had a linode for a few months now. Last month we went over the (600GB) limit by 50GB or so, but linode didn't charge us or, throttle us, or even contact us about it, probably because it wasn't excessive.