Hi SP,
The easiest way to get people involved with your country club is to visit their profile. Click the INVITE TO COUNTRY CLUB link at the top of their profile once. This will send an invitation to the email they used to register their account. I also recommend dropping a note on the person's profile (or send a PM) just to let them know you sent an invite and to check their email.
From there, the player just needs to go to their email inbox to retrieve the invite itself. Once they find the email they should log in to WGT and then click the confirmation link that came in the email. Once they click the link it automatically adds them to your club.
That's all there is to it. The process is rather simple, but I recommend going one or two players at a time in the beginning so you can get used to doing it. You'll be a pro in no time.
If a player does not receive the email invitation it usually means they have either mistyped their email or used an incorrect email in their account information. Have them double their account info to make sure the email listed is correct. Some email providers may automatically forward emails from WGT to a spam or junk folder. If your invitees cannot find their invitations have them check those folders too and if necessary, have them set up an exception to allow emails from members@worldgolftour.com.
If the player is not logged to WGT when they click the confirmation link it can also cause a problem, so make sure they are fully logged in before they click the email link to confirm.
Good Luck =)