I am the owner of [YOUR BRAND]. It has come to my attention you are selling [THE SAME BRAND]. I request that you to remove your listing right away.
[YOUR BRAND] is something I have created from scratch, and I have no authorized resellers. I sell branded products, and if you are indeed selling counterfeits, then you are in violation of Amazon’s terms of service.
I will file a Cease and Desist letter if the listing is not removed within 48 hours, and you will face legal action if you do not comply.