@coolactuary , I called up and selected "if you are thinking about leaving us" option and spoke to someone who arranged to put me back on ex-directory. Obviously, there's nothing now that can be done about the paper phone book.
I've always been ex-directory but I updated my package recently and moved onto digital voice, and I suspect that I moved back onto the directory then. Maybe I did not tick a box that I should have, but I feel that ex-directory should have been the default position.
Thanks @Dubie
I think your "default" comment is right, especially if, like me, you have be XD before.
My issue is that I'm not a BT customer, but I have a way forward.
Thanks again.