Hi @beclaw,
Thank you for your post and welcome to the Bunnings Workshop community, it is great to have you with us.
You might like to check out How to remove toilet paper holder?
It looks like they were dealing with the same problem, with the same toilet roll holder.
In this discussion, my colleague @EricL has given a fantastic visualisation of the fix.
Let me know if this helps, or if you have any further questions.
Jacob
