While Facebook is trying its best to mess up the interface, we find it harder and harder to answer messages we receive there. Please accept our apologies if you have written us and still waiting for us to reply. It will probably not happen, because FB seems to deactivate any conversations that takes longer that a certain time. And though we have read your message, we are unable to reply anymore. Probably it is another of the FB's tricks to keep people plugged-in in front of their PCs just to be able to answer messages in time.
So please use the contact form on our site to contact us. You will definitely receive an answer.