Marketplace brand protection
Marketplace takedowns run on registered rights. Amazon's Brand Registry requires a registered trademark before it will act for you, and hosting platforms in the EU only lose their liability protection under the Digital Services Act once they have a valid notice. Without a registration you are asking a platform for a favour, not enforcing a right.
Why the registration comes first
Every marketplace programme is built around a right the platform can verify quickly. A registration number is verifiable in seconds against a public register. An argument about who used a name first is not, which is why platforms decline to run it.
This is the practical version of the point in six trademark myths: the handle, the domain and the company registration do not give you a right to stop anybody. The trademark does, and it is what the takedown form asks for.
What the Digital Services Act changed
It put the notice on a legal footing. Hosting services in the EU keep their liability shield only while they act on valid notices of illegal content once they have them, so a properly drafted notice moves a listing from something the platform may deal with to something it has a reason to.
A notice still has to be specific: the listing, the right you own, why the listing infringes it. A vague complaint about a competitor gets closed.
What a takedown does not fix
It removes a listing. It does not remove the seller, who typically returns under a new storefront within days, and it recovers nothing.
Where the same seller keeps coming back, the useful move is usually to go at the infrastructure rather than the listings: the domain they sell from, if there is one, or a cease and desist letter to a business with something to lose. Ours start at €379 in Spain and €179 in Bulgaria.
If the seller has registered a domain using your brand, a UDRP complaint transfers it to you outright, which ends that particular shopfront permanently rather than one listing at a time.
What to have in place before you need it
A registration covering the goods you actually sell, in the markets you sell in. A watch so you hear about copycat applications while you can still oppose them. And evidence of your own use kept as you go, dated, because proving use is where enforcement stalls most often.