You may be able to sue the claims manager, but since the Labor and Industry Medical provider appears to have changed their position I am unsure about your damages. If you can establish discrimination, then you may have a civil rights claim. You will need a skilled attorney to help you.
This is not intended as legal advice. It is only provided for educational purposes and cannot be relied upon as legal advice. Further no attorney client relationship is or has been formed by answering this question.Ask a similar question