Often, you might need an account or a seller account, this could be improved indeed, however, whats available:
Amazon.com https://www.amazon.com › report Report Infringement
https://www.redpoints.com/blog/report-infringement-amazon/
https://www.redpoints.com/blog/remove-counterfeit-amazon/
Going to customer service will not lead anywhere usually, it needs to end up with the dedicated team.