I received a letter from my manager (NHS) on Monday saying I'd been named in a grievance and calling me for interview. The letter says I can take a union rep or colleague. I spoke with my manager and she said she cannot reveal any details about the grievance or even in what capacity I have been named. I cannot speak to any colleagues about it and cannot for the life of me work out what's it's about (I've actually only been back from maternity for 8 weeks).
I'm worried sick about this (not helped by my union rep not answering his phone).
Anyway I guess I'm asking is are they allowed to keep me in the dark over this? I've checked our policy and it's mostly about the person raising the grievance. How can I possibly prepare a defence of I need one without even knowing what this entails. I'm struggling to even function at work with the worry of it.