Short version: manager told me today I'll be receiving an informal warning- a letter- from HR for discussing my salary. I want to challenge this as it as 1- it's illegal to prohibit employees from disclosing their salary and 2- I don't think there is an issue with it either.
However, it is an informal warning that doesn't go on my file and my manager is of the opinion that it's inconsequential and not worth bothering to challenge.
What would you do?
More info if required: I am a registered healthcare professional working for a private company but in the public sector. My role is equivalent of NHS band 6.
My salary is pretty average and works out roughly to what I'd be earning at the top of NHS band 6- I am paid a flat rate salary which is comparable to band 6 NHS salary with shift/antisocial hours allowance and London Weighting added. We don't get any extras aside from planned overtime.
I have only ever mentioned my salary in passing when it has come up in context of general conversation.
As far as im aware, there was no complaint about me, rather another employe asked why they weren't paid as much as me which annoyed the head of department who took it to HR.