I made the mistake of calling the so-called 'help'-line again today... It has now been 5 months and 2 days since I sent my application via NCS (they received it on 3 June). Mistake because, once more, they have been completely unhelpful.
I have now noticed that the options on the phone-line seem to have changed, and if you select option 2 (I think - anyway, the naturalisation line), and then option 1 again (applications submitted in the last 6 months), then you get to someone who has ABSOLUTELY NO INFORMATION about your case. If you choose option 2, at least you speak to someone a bit higher up, who will open your file - but again, I was told 'application is still in process, being worked on'. Considering that I fulfil the criteria from several sides (married to BC for 7 years, EEA citizen living in the country for 13 years, and after studies, working - legally! - for 5+ years), I really don't understand the hold up. I can only imagine it is sheer incompetence that is making this take so long, and my suspicion is that the application is NOT in fact being worked on at all... Oh well, at least it's now just under 1 month to go till I can take my complaint to someone who might have a bit more clout and ability to look into this...
Good luck to those who are, like me, waiting since May or early June. I am waiting eagerly to hear what is happening to your cases...
