ASIN blocked without justification

We are a selling partner of a global brand in Hair Products. A customer messaged us to ask how she would know if a product purchased online was counterfecit, we obliged by describing the unique security markings. A hew days later our listing was blocked due to inauthenticity, no complaint was ever made.

That should not be a problem, we have all the manufacturer invoices, appeal made and subesquently denied. I have since made 5 appeals and each time I get a generic response saying they don't have enough information, but can't tell me why due to privacy. Their account speialists are stumped and advise us to submit another appeal. I have messaged the UK MD and get nowehere with that.

Amazon have a culture of negativity to it's sellers and we feel disadvantaged at every turn.