Why do I need to enter my payment information?
After you have done with purchasing add-on, you can make a payment directly.
When creators decide to alter product price, shipping fees etc., you can make a payment directly as well. If you have any questions with your payment, you can contact the creator support email listed in the survey invitation email.
PledgeBox is a 3rd party software for Kickstarter creators to collect shipping information from backers. All the payments were directly paid to the creators.