Thank you both for the feedback. The link to the Pursuit was useful to see how their cancellation was handled.
We have considerable OBC on these cruises so will have to remain patient until we receive notice of the 'cancellation'. Even though it is in the future, it means a substantial change in plans considering the distances we have to travel to Europe. Other cruises around this time are not suitable as they repeat cruises we have just recently completed. I think publishing the cruise as a charter was obviously a big mistake on someone's part.