Actually, I did!
Sorry not to update earlier. Mr. Amand looked into the problem and found that an easily confused assistant had packed something with a similar (to him) name instead of the Pleione - what he packed was 10 tubers of the N. Indian aroid Remusatia hookeriana.
We were allowed to keep them with no charge.....I await the flowers with moderate interest (Google images does not suggest that I will exactly be pinned to the back of my seat by this spectacle).
Alex