Went to Girne police today, very busy but nevertheless a pleasant and helpful officer. He agreed that (with my kocan etc) I should have got 90 days, and that I must must have copped a "awkward one" - however, in this case (as it's just over seven days involved) it's not worth spending time faffing about for hours in different sections, but much simpler to nip down to Lefkosa, cross into the other side for an hour or so and come back, acquiring a new 30 day visa!
He said that a great many get the 90 days without problems, and wished good luck next time, and "get lots of paper to smother them with if they're awkward"...
So in a few days, fingers crossed...
Re the Kocan - the (40) apartments were built in 2009 (and are well out of builder's electric!) but as far as I know do not carry build details (mine doesn't). I understand that each of our kocans specify 1/40 of the site - last year "parcelisation" was looked into, which would (apparently) would have individualised all the kocans - all very technical...