Do i need a lawyer

Hi,I'm trying to contact you about a problem I'm facing due to becoming unemployed. Immediately after becoming unemployed I filed my unemployment claim only to find out I am unable to claim what I'm entitled to. At the time I was employed by the employer I worked between 40-60 hours a week, my problem is that my boss only claimed 20 hours on my check, so now the unemployment office will not provide benefits for more than those 20 hours the employer has claimed. I would like to collect benefits for what I actually worked and if possible to collect overtime. I have proof of all my work history and hours I've worked. Can you please help or provide me with the information I need to take care of this. Looking forward to hearing from you soon. Thank you for your time.