Never purchased from ticket monster but I would assume you take your purchase confirmation into your local Sam's club and they will set you up.
So when you purchase a membership from a online vendor, you simply need to fill out a little bit of "paperwork" from Sam's club then you your ready to go into any Sam's club, ask for the membership desk, provide them with the email confirmation and they will take it from there.
Go to the Sams store
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