I have only accepted the minimum wages in the past because it is legal and nothing done wrong by the employer for offering it.
Hold Short - with respect, go back and read your own posts! You didn't accept the minimum wages
you accepted WELL below the minimum, and it is not legal and the employer
is doing something wrong.
The union wouldn't help you because you weren't a member. You can still pursue legal action against the employers for the wages they withheld from you, though.