Deactivated for falsified invoices but we are the authorised European distributor of the product

I am at a loss of what to do here and wonder if anyone has any possible assistance.

We are the authorised European distributor of a product, and have been for many years. We are the only company in Europe that are able to sell the product. The supplier is an American company. We buy from the American supplier, who ships from China directly to us.

Someone had a problem with one of the products. They actually weren’t following the instructions. But they raised a case with Amazon, and we believe also reported the product as inauthentic, as this report came within a couple of hours of the case being raised.

We supplied Amazon with genuine invoices from the supplier, and then were deactivated for providing falsified invoices. We have spoken to at least ten different people who have given us many different reasons for why they think they are fraudulent invoices. Including nonsense like “The company is in America but the product is shipped from China which can’t be right” and “All invoices should have a company watermark and the font they have used doesn’t look genuine”.

We’ve submitted various appeals, including two different letters written by the owners of our supplier, confirming we are an authorised stockist, the products are legitimate, the invoices are legitimate. Packing slips for the orders from China, bills of lading, etc. Every document under the sun to confirm that these are legitimate.

The buyer actually withdrew their claim as we helped them use the product correctly. But because this is a matter of ‘fraudulent invoices’ we remain deactivated. I have appealed thirteen times now. I am out of further information to provide and am going in loops with Amazon customer service.

Does anyone have any ideas?