There's a bit of background to this, which I can expand on if required!
Long story short - been with same company for 10 years, been "tapped" to take over from my boss (male) when he retires this year, but owner is refusing to pay me the same hourly rate for the same job - there will be about £1.50 per hour difference in the rates. Owner is saying it's about experience and that I'm "unproven", but I've been doing the job in tandem with my boss for the last year.
I'm job hunting now anyway, but it's just nagging at me...