@Oxonian Thanks, I am new to this board and stupidly assumed that
hitting the "reply" button would direct my response to the right place,
my phone has just come back on so hopefully @Catherine7 is back online
too.
I called tech support yesterday morning with the same fault -
apparently, there's a problem with the local cell mast and they are
working on it. You can check on the status of the fault here:
https://status.o2.co.uk/