So OP, this purely procedural phase is now at an end i.e. CNBC have issued the claim form, you've submitted a defence therefore mediation has been taken from the cupboard only to be put back again once no pre-hearing resolution could be found and as CNBC are purely administrative (they don't hear cases) their role is over and they've allocated the case to a real court, presumably nominated by you, from which you will hear in due course.
Standard stuff.
The lesson for you: check your junk mail better/more often and make sure that if you go away for any length of time your mail can be managed. Default judgments abound in this area.