I'm going to decide to stop paying union dues
why dont you wanna pay your dues?
I had a costly operation and I'm too broke to pay them.
I understand that you're going through financial difficulties. At the same time you owe the union your share so you should somehow make the arrangement. Maybe you should talk to them about your surgery and they will understand it.
You are right, I bet they would want to help me, I'm going to go back and demand money now.
I hope they are able to help you but try not to demand that they do give you money. It will upset them and then you won't get any help.