I have returned to the thread chaps sorry about the long time away,I should have updated this ages ago apologies all round.
Right long story short went back a few days later, long wandering extension lead in hand, found out it was exactly what VMAN suggested the D.B was incorrectly labelled apart from flat 5, so when I thought I was doing r1+r2 on flat 1 it was actually flat 3 as labelled on the board.
thanks to everyone who posted for your help and suggestions
nice on lads
(don't worry in future I will report back straight away)