None of us can hazard a guess. Depends on the facts and your arbitration agreement. Perhaps the arbitrator simply disagrees with you.

I suspect that you have waited too long, but speak to some local attorneys. Every state has different time periods in these cases. I am sorry you...

None of us can answer this on line. Take all the documents to a local attorney and pay them to sort it out.

Arrange a meeting with the lawyer (even over the phone) or write a letter requesting a refund.

I would suggest calling your local postmaster. ...............

A lawsuit will cost thousands and take years. Just go pick it up.

This is a general Q&A site. You have not asked a question.

You ask if you will be sued but state that you are currently in litigation. Your post is confusing.

Can he sue you? Yes. Will he win? Up to a judge to decide based on all of the facts, which we obviously don't have.

You will need to have a local attorney review the actual document to determine enforceability.