The cvv is an optional anti card# theft measure that is to confirm that you have the physical card in hand, but is not required for a purchase to go through.
they don't need the cvv to charge the credit card, they assume the risk for bad cards this way, but speed up processing
If you have bought from there before it already has the information. It should give you a choice of credit cards to use.
because they are you , and you are amazon . amazon knows everything you know , as you know everything amazon knows . thus no need for such silly things as cvv codes
Call and ask.
