On one of our Diamond cruises, they had an AMEX line and a regular check in line. The regular check in line had no one waiting so we used that instead.
🚢 Cruise with your favorite Keene Luxury Travel Staff Member! 💰 5% KLT Reward plus Shipboard Credit available (amount varies per voyage)! 💲 Offering Enhanced KLT Rewards on voyages hosted by Ngaire & Clay!