You need to go to the box office to redeem the tickets.
Only if you go in to buy the tickets, can't be used online. "Yellow Single Ticket: Present at box office. Not valid for online redemption. Valid at AMC Theatres® U.S. locations only (excluding California, New York, and New Jersey). Unauthorized reproductions not allowed. AMC exchange tickets are NOT eligible toward earning AMC Stubs® reward."
Not sure
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