I was just thinking about the border force strikes - mainly have they fucked me and was trying to find the dates - and i end up on the PCS website that was referencing it.
I noticed the ballot percentages
The had a 51 % turnout which cleared the 50% turnout requirement
they had an 86% yes vote so I assume that 14 % voted no
ironically, if those No voters had just not bothered, then they would have got they outcome they wanted. By voting they got the union across the threshold and the Yes vote was valid.