Many thanks to all of you that offered useful advice.
As it turns out my situation is sorting itself out.
I put up my third today and therefore am entitled to a room in the Mess.
For the interim this is a bonus, I really don't envy the next Junior Rank that has the misfortune to get allocated the room in the Barrack Block they gave me.
I wouldn't put a dog in it, let alone a human being.
Thanks again
CC