Hello Kyle, and can I offer you a warm welcome to the forums and want to thank you for your comment.
I appreciate the situation you are in and understand your last paragraph and believe you are tackling this with a great attitude for the love you have with your mum and how concerned you are.
Being able to talk with your mum is important and for her to finally open up, whether it's by her breaking down or having the courage to speak with you.
Everybody is different in how we approach them, and this can also include our parents, especially when they break down in front of us as this may not have been the case very often.
From what you say ' she has no energy to fight' and first of all if she could take time off work with a letter from her doctor mentioning the reason why, then workcover may investigate the position she has been put into.
The start is getting her to see her GP and will continue when others reply and if you also can do so.
I want to compliment you on wanting to have our advice.