I am currently in a difficult situation at work. I am a deputy in a large school, where another deputy was promoted over me as interim head of school. There were question marks about the way the process was carried out. I am looking for jobs elsewhere. The head of school is being very obstructive about allowing me to speak to my union rep (has to be done in my lunch hour, even if I am not timetabled to teach). He is now saying that I can only go and look at schools and attend interviews unpaid. This has not been my experience in other deputy headships (this is my third). What is normal practice?