When you complete a checkout, your credit card company puts an authorization hold for the order amount on your card. This money has not been paid to TravisMathew, rather your card company has put a hold on it for you while you check out. If your address information then fails to validate (often due to a different billing and shipping address or your information was entered incorrectly), then your payment will be declined. Your credit card company will release the authorization hold between 2-4 business days after it is made depending on your financial institution. If you attempt to checkout multiple times, your card will be authorized multiple times, but not charged.