What you believe is just cause to quit and what the law says is just cause to quit may not be the same thing. I am not licensed in Indiana, but not all discrimination is prohibited discrimination. Unless the employer has an obligation to pay you in comparison to this other employee, then the fact that you quit because the employer didn't do so is neither wage discrimination nor just cause to quit. But you will need to check with an Indiana lawyer regarding the law for just cause to quit in an unemployment context. If your legal theory is sound, then yes you should appeal. If there is no legal basis for you to appeal, then it would probably be pointless. The only way to be sure is to have an attorney review your circumstances and your paperwork, including the written denial. Be aware that time frames are usually quite short in unemployment cases, and that if you are ever going to need an attorney, the most important time is that first appeal, because that is when you will get a hearing and get to present all your evidence. After that, you won't get to fix anything you did wrong the first time, only argue based on what happened at that first hearing.
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