I had my Amazon seller account suspended twice and got it reinstated both times. Here is what actually works based on my experience and talking to dozens of other suspended sellers.
First, understand that Amazon suspensions are handled by their Seller Performance team, not regular customer support. Calling or emailing general support is a waste of time. You need to submit a Plan of Action through your Seller Central dashboard or, if you are locked out, via the email address associated with your account using the specific appeal format Amazon expects.
For the 10,009 dollars at stake, I would also consider consulting with an attorney who specializes in Amazon seller disputes. There are law firms that focus specifically on this area and they know exactly how to draft appeals and escalate within Amazon legal channels. Some work on contingency for larger amounts.