To determine if you are being underpaid, you need to find out the correct rate at which you should be paid. This can be affected by a range of factors including, whether you are full-time or part-time, whether you are casual or permanent, whether you are a trainee or apprentice, your age and your qualifications. You can contact the Fair Work Ombudsman to find out if you are entitled to be paid above the National Employment Standards pursuant to a modern award or enterprise agreement.