Hi Avvy,
I have been following this forum since ages and after reading your post I finally registered coz we have gone through the same process as you are going through now. I just want to share my experience with you and I hope it works for you too. First of all, it is not you who is being assessed at the moment. It is the nomination so even if you have a skills assessment or you qualification in project management it wont help. At this point in time you have to prove that the position is of a project administrator and not of a personal assistant.
My husband had applied as an office manager and we got the same reply that the position is more inclined towards a personal assistant. I have no idea how they got to that conclusion but they did. We got CO in sept and finally after a lot of documentation transfer between CO and us they finally approved it in Dec. Though we are still waiting for our visa.
What we did was that we provided them evidence against every single duty that was for the office manager at the abs website. And there were a lot of them. We kept sending documents to the CO and every time there was something new that they had trouble with we kept sending evidences and finally they accepted that it is the position of an office manager, it took 3 months for us to prove it.
But make sure that you are not being questioned here, it is the position. Obviously, as you are already working in that position so it would have your name or designation on the proofs that you provide. It has to be a communication between your company and your CO or your MA and your CO. You have to prove it to them through enough proves against each duty of a project administrator. Once they are convinced that it is the position and not of a personal assistant then they will look at your visa application to see if you are eligible for the position or not.
I hope it helps.