I would submit the hotel expenses & any meals you paid as well additional airfare costs to the insurance ...all they can do is say NO.
It is worth a shot
You should keep all your documents together & make photo copies before sending in the original receipts to the insurance company.
Alexandr Pushkin, Carnival-Holiday, HAL-(old)Westerdam, Orient lines-Marco Polo, Royal Olympic-Olympic, NCL-Dream, Dawn-Princess, ACCL-Grande Caribe, Oceania-Insignia (3), Regatta(4) Marina (1) St Lawrence Cruise Lines-Canadian Empress
Scenic River cruise June 11,2012