Using a credit or debit card, you may place your add-ons through PayPal. (You will not be required to sign up for a PayPal account.) In the required notes section; Please enter your buyer # then write the exhibitors name and amount of add-on. If you are adding on to multiple exhibitors, enter one total amount for all add-ons, then write each exhibitors name and amount of add-on in the notes section. If you do not have a buyer’s number leave that off and one will be issued to you. Please call us at 559.781.6582 if you have any questions.