My friend is going through an employment issue which I am sure is illegal. However I am not HR savvy enough to properly advise her, so I hope one of you can help.
Her employers have changed her job title and responsibilities (but not her wages) and havent had any consultation with her to explain the process. She found out during an office meeting 
Does anyone know what her options are and whether she should pursue this legally? She is going through a lot at the moment and just seems to accept it but it is clearly adding a lot to her stress levels and unhappiness.
Any advice or HR knowledge gratefully accepted.