And why is that then???....Could it be because divisional reps are too near their counterparts in Royal Mail and don't like to rock the boat and like to sweep things under the carpet or undermine the very local reps that this new agreement is expecting so much of?Things do not often go to national level from the IR framework so your point is not valid with that regards.
I'm assuming that you did a typo and you meant to say employer and not employee.I have had experience as ACAS and other parties as mediators and I disagree with you that they support the employee , in my experience Royal Mail are more opposed to ACAS cause they recommend that they do things differently.
But I have also dealt with ACAS and I can safely say that they do NOT have the employees best wishes at heart....why do you think that the current Government have now made it that you have to go through them before(Mandatory pre claims)..(and it ain't about saving money or time