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This wouldn't be a criminal action because they haven't actually defrauded or stolen anything from you. They have apparently refused to honor your employment contract with them so that would make this a civil breach of contract case.
With that said, you have a couple options. You can contact the employer and tell them that unless your wages are paid immediately, you will file a "wage and hour" complaint with the US Dept of Labor Wage and Hour Division (GA doesnt' handle their own) and they can take it up with the DOL and explain why they are unlawfully withholding your wages. That should "encourage" them to go ahead and pay you for any improperly withheld wages.
The other option would be to file a small claims action against them for breach of contract. When you agreed with the employer to perform work and they will pay you, that is a binding legal contract. You performed under the contract, they breached. So you would have a cause of action to sue for your wages and other damages.
But I would try the threat of a DOL complaint first because most companies don't want the DOL to crawl all over them and inspect their business practices..