A couple of days ago I did a quick on-line message on Spitfire Audio but have not heard anything or seen any reaction as yet.
Yesterday afternoon, I sent an email for Christian to Grace at Spitfire having a moan about the whole thing and while it was a quickly thrown together email, I would hope it generates some type of response regarding Pianobook, particularly as I mentioned this post Markus.
Found some contacts by searching for ChristianHensonMusic on youtube and going to about.
Then website and finally contacts.
(actually think I posted similar reply but it it had urls in it so would need to be checked before it was published)