I've decided not to arrange a ClanBase match for Boxing Day as I suspect we may struggle with availability and it's not possible to cancel CB matches.
I will be arranging some ED friendlies (although with the current problems in setting up our match server[1] it may have to be 'away games' only).
[1] The server has to setup manually for matches by an available Admin but, due to continuing server config conflicts, not all admins can do this reliably.