Head to the Payment Method page of our app site. To get there from your inbox, click "My Account" in the Yesware drop-down. Navigate to the "Admin" left hand menu, go to the "Billing" section, and choose "Payment Methods." Enter your card information and select "save."
Please note the Payment Methods page will only be accessible for the Account Managers of your Yesware account, and Yesware accepts payment via credit card but does not accept payment via PayPal.