How to actually use my money from McDonald's job?

I work at a McDonald's and I have never had luck using my paycard. Every time I try to use it, whatever I use says my card is declined. On gas pumps, transactions are cancelled. On sites such as Amazon, it says my credit card is invalid. I have tried closing current cards and activating new ones, and the problem persists. I activate the cards by calling the automated number my work gives me (which forwards me to something automated to type my employee number, the number and security code on my card, and a PIN of my choice, and each time it says my card was successfully activated and previous cards were cancelled). Yet I go to use it and it still won't go through. I think I can fill out a form to change where my payment goes to, but how do I access the money I have in my existing McDonald's account? Thank you in advance