I have one question which might help but I have a feeling that I already know the answer. Was every single sale from a different account? In other words, I sometimes see a notification on a sale that this is a repeat buyer and can look at all of the prior transactions. If there are multiple transactions from the same account then maybe you should have Amazon look at the account to see if there is other activity that this buyer is doing to other sellers as well as you. But I suspect this scammer has multiple accounts. I also would not be surprised if this is some sort of organized group doing this. But that creates another issue. Can Amazon tell if the bank accounts or credit card transactions are the same? I cannot imagine setting up multiple bank accounts is easy unless the scammer is in a foreign country. Someone at Amazon has to start looking at this from a different perspective other than on an order basis This should be looked at by buyer account. If they are doing this to you, then they have to be doing this to other sellers too with those same accounts. Then if someone from Amazon starts digging then after seeing the account then they should look at the payment method. If the same credit card is attached to over thirty accounts then clearly there has to be fraud and Amazon should have had flags going off. They certainly have an automated system for flagging inventory. I cannot imagine that they do not have ways to discover fraudulent sales activity. .