Auditions will never under any circumstance, cost you any money EVER. Casting directors are paid a set fee from the production to cast their projects. It is the casting director to figure out how to go about casting within that specific budget. Casting Directors can only be paid by production.
Can I wear jeans to an audition?
You don’t need to dress like you’re going in for a corporate interview here. Your clothes shouldn’t be a wrinkled mess, but you also shouldn’t be wearing business attire to an audition. A good pair of jeans can go a long way, and it’s worth investing in a pair for auditions alone.