My 60+ Y.o Dad Did Not Get Paid By His Employer For A Whole Month And Department Of Labor Says He Has Insufficient Evidence.

My dad has trouble finding work due to his age and limited English. He works as a sushi chef and this employer took advantage of him. He worked from 11 AM - 9 PM for a whole month and even two other coworkers who also received the same treatment (eventually he fire them for addressing their concerns about pay). Unfortunately a lot of Asian restaurants are not by the book they don’t have you clock in electronically, there’s no written documentation for hourly wage, mostly things are settled verbally. He has phone call records and the restaurant has security cameras. I thought this would all be enough to received a fair verdict.

However, we just got an email from the Department of Labor saying they are unable to help us with insufficient evidence.

There are three people stating their employer did not pay them for hours worked. Three people who got completely used due to their age and limited communication. I am really upset this happened. Does anyone know who to contact?