Write him or her a clear, firm and POLITE letter stating what you wrote in your question. He or she will either respond with an explanation of what your advanced payment was used for, or refund all or part of it. If you do not get satisfaction, you can file a grievance with the Office of Lawyer Regulation, which is an arm of the Wisconsin Supreme Court.
Answered on Feb 19th, 2013 at 1:37 AM