There is a half year price for applications submitted between January 1st and May 31st. If it is April or May, consider waiting until June to join.
Likewise, if it is November or December, consider waiting until January. A January-May applicant can be a member for three additional full years.
ALSO - You may pay by Debit/Credit Card or PayPal Account. But ALL transactions are handled by PayPal. Click on the PayPal button then choose which method you will use to pay. VNC does not accept payment by check.