Thanks very much MrSaffron! Yes, sorry, I think that's the right one - STWINCH Cab 31.
That's odd if you think it's been enabled since April 2013 - Is this not Cab 31?
If so, I haven't noticed any new cabinets appearing nearby, but I can have another look...
If it's an issue with the cards, how many lines can one card support? And how many cards can one cabinet support? Do you just have to wait until OpenReach decide to install more?
If it's an issue with the checker, is there somewhere official one can report or query this?
Thanks again for looking into it - I don't suppose you please have any more information on the other cabinet in my query (Hampton/STHMPTN Cab 11)?