If your trip was canceled due to one of the following reasons, you'll be able to use the credit again:

• You canceled without violating the captain's cancellation policy.
• Your trip was canceled due to bad weather or mechanical issues.
• The captain was responsible for canceling your trip.

If your trip was canceled in violation of your captain's policy, the deposit will be transferred to the captain, and you won't be able to use this credit.

To find out how to use your credit, read this article.