TidalBuddhaFrog, I need you to do two things.
First, click "About Me" on your profile (directly above), then click the yellow pencil next to "XG Rank", update it to "Captain", then "save".
Secondly, click "Community" on the top of the page, click "Join A Clan" in the drop down menu, then click the bubble next to "Captains - KoG", then scroll down to the bottom of the page, click the "Join Group" button, fill out the appropriate information, then send/submit the request,
Thank you,
FaceUp