I am working in AZ and I have changed my Employer few months back. After that I asked many times my former employer to pay my pending salary and send exp cert. But He is not doing either of the things.

I am working for same client from last more than 2 years I am not sure whether I signed any contract with my earlier employer that I cannot work for same client after leaving the company.

In all this circumstance, is it advisable to complaint to labor for all this?

What are the chances that employer will send me the exp cert?