Also, look at:   Deposit	Cancellation fees The amount deducted by a supplier from a refund of prepaid funds, when a reservation is cancelled.  This amount increases as the scheduled holiday date approaches.			related sites
Sidenote The most common cancellation fees for yacht chartering are: In case of cancellation 2 months and over prior to embarkation, a cancellation fee of 20% of the total charter cost will apply. In case of cancellation between 30 and 60 days prior to embarkation, a cancellation fee of 35% of the total charter cost will apply. In case of cancellation between 30 days and embarkation, all money paid so far will be held by the agency. >> more info & tips