I went through a very intense and rigorous set of internal interviews for a promotion role. Pay was discussed at interview and again at offer because I get supplemental pay in my current pay scale for an expert grading (this grading is very relevant in the new role)
I was advised that I would get promoted on a particular, lets call it expert, pay scale to take account of this - I have this in writing (pay scales are established and on our intranet for everyone to see).
This morning I checked the HR system and it shows me at the bottom of the standard pay grade for this role (where you would expect a new starter to the business to come in) and as such I will be worse off for a lot more responsibility.
I spoke to the recruiting manager and he basically just shrugged and said that it was totally out of his hands as HR have told him its not open to change. (this will not be my manager once in the role, i know the work and the team and they are all great)
I like my current role and I am happy to not take the promotion - but my OH still thinks that a promotion is a promotion and I will be bottom of a new salary scale, whereas I am at the top of my current scale but I can't get over that i should actually have a significant pay increase if i was given the pay scale promised at interview.