In general it is your agent who will communicate with CDs on your behalf but there can be opportunities to contact them directly, perhaps to introduce yourself as a new talent, because they are casting a project you are particularly interested in or to follow up on meeting at an audition.
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.