The one piece of advice I will give you is to ask for a sit down with HR and tell them what is going on. Stress that you dont mind helping but you feel you are doing the managers job and training people on top of your actual job role. Request a pay rise and/or promotion. If they cannot do that then say you feel you should only do the job you were employed for.I had a job I loved but I left at the end of mat leave but somebody contacted me who used to work there and went somewhere else and said it would be much better for me. I knew on day 1 it was a mistake. The company was awful. System was tit and office was freezing. I hated it. Cried all the time. I stayed a year and then went to where I am now. I’ve worked in my current job for 3 years and whilst I love what I do and am really good at it if I do say so myself, a management position came up a while ago and I was put off applying for it because it was around the same time I’d applied for flexible working (wfh a couple of times a week) they’d already decided who was getting it and it was this guy who has much less experience then me and doesn’t know what he’s doing. 6 months later we were all wfh full time anyway. That was kick in the teeth number 1.
I now consistently get called from my manager (guy I just mentioned) asking how to do things, amongst the rest of the team who have no clue what they’re doing. I’m often called in to help when stuff has gone wrong and train the team, I work very long hours to manage all my own work, and I’m the girl everybody wants to work with because I get tit done - so I feel soooo unappreciated and under valued.
I like the company, I like my job, but I’ve been doing it a long time and I want more and I don’t know how to get it. I’m scared to leave as I don’t want to end up somewhere crappy again and hate it, but I’m not feeling that happy at work atm, although of course grateful to have a job in these circumstances.
If you are that valuable to them then I can see at the very least a pay rise to reflect it. Do not be scared to ask. The worst that can happen is they say no.