I've found out a man I work with gets paid £2k more a year than me. I know it's a small amount, but it's the principle that's got my rage up. I work my arse off, I work evenings and weekends off my own back just to get my (highly stressful) job done. I get rated highly on my performance reviews. Theres a man with exactly the same job role, different location, who is a lovely bloke but he's shite. Same job title, but he deals with stuff at a much lower level than me, and I know he's been officially rated as 'needs improvement' in his reviews. He's been pulled up about his mobile phone usage and crap/lack of performance multiple times. He's been there years less than I have. Should I raise a claim to tribunal? I'm so fucked off!