NC for this.
I was hired a number of years ago to take over a job from Person A who was retiring. It took a few years to learn the job due to the breadth of the work/clients etc. Person A brought these clients/the work to the company.
I was earning approx 30% less than A when I started. I always assumed salary would go up to their £X salary when I fully took over the job. Have had tiny incremental payrises over the couple of years when learning the job from A when both of us were employed.
Person A retired in 2020 so for obvious reasons the payrise did not happen - company wide decision. I flagged I wanted a payrise discussion as soon as possible.
Have had 2 pay reviews since then and after a lot of fighting I have managed some payrises but I am still on approx 16% LESS than A was 5 years ago. (A also did not do quite full time hours. And there were also other employees slightly involved in the work when A was working so A never ran the show on their own - like I do now). Company is doing well. My work is doing well. I can argue/prove/justify my worth/how I am doing the job better than A.
Company essentially refusing to pay me more. Main argument seems to be that A brought the work to the company hence they paid A £X and also implying perhaps it was too much. It was also implied to me that A wanting to retire/being closer to retirement age may have played a role in agreeing A's salary - I am generation below A so clearly if they paid me £X, plus inflation, over the years they would pay out much more. Ofc this is not something I can ever prove was said..
Is there anything I can do, short of handing in my notice? I know that they could not replace me within my notice period as there is just too much for a new person to learn so they'd just agree to pay me what I wanted. But there the 1% chance they would let me go rather than pay me more so I guess I can only do this if I am ready to go. (I'd rather not!)
Any other ideas?! Are there any rules about having to someone doing the same job as someone else the same money!? A was the same sex as me so no sex bias..