I will apologise in advance if this seems a bit vague, trying not to out myself completely!
Been with company over 5 years, always solid performance and promoted after 9 months. Took a period of mat leave and returned earlier this year to multiple organisation changes. My role remained the same but took on a greater level of responsibility upon my return. Someone then left and I took over their role in addition to my existing workload... I was asked to do it and as it's a huge role now I stated I would be happy to but I would need to know my salary would be reviewed and adjusted accordingly. Promises were made and I was told it would be sorted as part of some other organisational changes that were coming.
Well those changes took place, I was effectively promoted up as a result (in terms of title/organisation level and bonus %) but told salary issue was still to be signed off. I've been doing the dual role for over 4 months now, feedback has been open and really very positive. Yet still no salary increase... I've since found out that my 1 peer in the UK (a guy) asked for a pay increase and got it, yet as a result of my recent 'promotion' he's now a level below me. We have then hired another guy into the team recently who again is a lower level and has a dotted line to me, and is on virtually the same salary as me. We now have another opening in the team for someone who would again have a dotted line to me, and the salary budget is the same as the most recent hire.
I'm really not sure what else I am supposed to do or say to get this addressed. I'm feeling so fed up and disallousioned, that I've started looking elsewhere now. I don't know whether to raise it with my bosses boss, who I'm told is supportive of me getting an increase, or not. Would love some good advice please! 