I posted earlier this year about some issues i was having at work. I have managed a team for over 5 years and a restructuring led to me having to give up my office to a male colleague who had less seniority to me. He was elevated in status but our pay remained equal and i retained my team. I have now been told that i am to lose all of my supervisory/team lead duties and will report to this colleague effective as of now. The team will all report to him. I feel as though i have been demoted and my role has been so significantly changed that it actually no longer exists. What can i/should i do? Thanks