ok I got it working.
Funny thing - this sounds a bit odd but I figured it out by reading the circuit diagram so I'm guessing its meant to be this way.
U need the ignition on to flash.
wierd.
You can have hight beam without ignition but need ignition to flash

That how they work.

Yeah it doesn't make sense to me but i tested the switch with the meter and it was working. So I started drawing my on diag by folloing the circuit diag for the car and realised the power for the flash was coming not from the headlight wiring but from the ignition wirings.
So I checked and sure enough - the flash worked with ignition on.
Very strange.
I should change it