Hi Mike,
When a club owner sends you an invite you'll receive an email
with a link to confirm that you wish to join the club. The invitation is sent to the email that is registered on your WGT account, so be sure
you are looking in the right email inbox. It is possible emails from WGT are
being collected in your spam/trash folder, so please check both of those
folders and make sure you are accepting emails from members@worldgolftour.com.
Your friend can send you another request to
join, but he must cancel the invitation that is currently active. If there is an invitation currently active your name will be shown on the club owner's list when he/she views the club's profile. Pending invitations can be canceled by the owner by clicking the red X that is located next to the player's name. Once the invitation is cleared and your name is removed from the club owner's user list it can be sent again.
Hope that helps. =)