From Marillion FB :
"… However - Over 1000 of the tickets at RAH are debenture or member seats. When the member seats are sent out, members can choose to attend, leave their seat empty, or make it available to RAH box office for general sale. We have been clear that we would like as many returns as possible and although we don’t have any control over who returns what/when, we do hope to be able to give you a heads up on when the member tickets are going out.
Thanks again for your support and loyalty – we are all a bit overwhelmed."