I have been second in department in a secondary school for the last ten years prior to maternity leave. Before I returned to work I successfully negotiated with the HM to work three days a week or 0.6 of my timetable. At no point during these conversations was my position as 2nd in dept discussed and I assumed that prior to my signing a new contract I would have a conversation as to whether I would do the same job in three days (completely possible) or whether I would do some kind of job share with the person who had been covering the role whilst I was on Mat leave.
So I was quite shocked when today (during my first day back at work) I have been informed by my very embarrassed HOD that the man covering my role received a letter offering him second in dept as of next term! He hadn't even applied for the job or been asked if he wanted it.
So where do I stand? My understanding (and what I plan on saying to the HM in a meeting tomorrow) is that if you return to work part time this should not automatically lead to a demotion or to less money (pro rata). If relinquishing my position was part of the condition of returning to work part time this should have been made clear to me and there needs to be a good reason why I can't do the job in 3 days.
Is this correct? Is there anything else I should say? Many thanks.