Scarecrow,
You are correct. If you wish to purchase a card directly, contact Kathy at
kathyjuby@usawks.com.
Although this is permissible, as a general rule I would recommend that you purchase your card thru your club. Your club may have some additional requirements that you will need to cover, or might have other circumstances which make purchasing the card thru them preferable and advantageous to you and to your club.
There are legitimate reasons why you might want to purchase a card directly, but this should be the exception.