I didn't buy the play, however I believe that it is in bad taste to "pull down" a play that has already been sold. That being the case, Fezz should refund 100% of the money to those that purchased the play. After all, it was "puled down" and was no longer a play, right? How can you charge for something that didn't exist?
Fezz, be a man and refund everyone, don't give them credit, it isn't the same. Just my thoughts on the matter.