Okay I'll keep it brief...
Partner started job last year. It became apparent place is chaos and the job title got stretched to cover a range of diff things. Not ideal but he needs the job. After lots of extra stuff being added onto my partner on top of his own normal work he bacame v stressed and started to detest job. CEO then acknowledged that my DP is doing way more than what he's getting paid for, then it's announced that he's getting a big promotion ( great, all good) so m DP has been doing the new role for 2 mth and as yet the pay hasnt been confirmed because the budgets are still being worked through. He's been told that it will be January.
So ... should his new pay be back dated from November or is that not how corporate companies work? ( he's been promoted to a global head of 'XYZ' from IT manager type job incase it makes a difference)