How long does it take Alibris to suspend sellers?

[amy]

We finally put a credit card on file at Alibris today because I was sick of having to click through the "why isn't your credit card on file you stupid idiot" screen .  They'd been sending us emails since January threatening death, destruction, and suspension for not having a card on file or paying fees. 

How long do they give sellers before suspending them for not having a card on file and/or not paying fees? 6 months is a very long grace period.  I wonder if we could have stretched it to 12...  ;D