When you enroll online below, you will have the option to pay by mail with a check or pay online with a credit card (AMEX, MasterCard, or Visa).  If you are paying by check, "offline/mail" under payment options in the shopping cart. You will later see instructions to print the invoice page and mail your payment to KnowledgeConnex. The mailing address will be on the invoice. Make your check payable to KnowledgeConnex.