I've never had the penny charges deducted from my Card's balance though I have seen them on the invoices. I know every card is different. However anytime I use my CC there for free books they do $1 authorization charge for first time if I haven't brought anything in a week or so. That goes pending up to a full week. It eventually makes it back into my PP account but if the funds aren't there they take that $1 from my back up source which is my bank account.
The earlier suggestion of adding a gift card to your account sounds like a great idea if that would keep them from messing with the Credit Card completely. I wonder if you do add a gift card do you even need a CC on your account to order the free books?
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