Not knowing when I'll be getting paid

When I first started with Nursa I liked the fact that I could pick up shifts Sunday through Saturday and get paid that following Thursday. It made it easier to plan out my work, I knew how much I needed to make that week, how many hours I needed to pick, a long with how many days, all based on which bills are due and when. 

Now I don't know  how many hours or days I need to pick up. What days will be deposited. How much to put into my bill account, savings and spending. Mainly HOW LONG WILL IT TAKE THE FACILITY TO APPROVE MY HOURS. Which is now based on when we get paid for that shift. 

I am a financially organized female and I can not be if the pay is ALL OVER THE PLACE.