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So I'm sitting in the Baltimore cruise terminal waiting for someone to cancel on the Grandeur which is overbooked so I'm assigned a cabin and allowed to board. We purchased 2 guaranteed cabins and a reserved cabin in a group. One guaranteed cabin assigned a room number weeks ago. The other wasn't assigned and confirmed still "guaranteed" as late as 2 days before sail date. During check in were notified of an overbooked cruise and we need to wait for a cancellation (not just a no show) in order to to get cabin. RC has our $ for months. There were dozens of avail cabins in all categories when we booked. Just tried to save couple bucks with "guarantee". To say we're frustrated is an amazing understatement. How often does this happen? What's the policy on guarantee and overbooked? Is this how RC treats passengers? New to this experience after a dozen cruises on other lines. SSSSSSSS