After you have secured the Rights to Sell a design, NO other RiskFree eCom Partner can copy your design
It is completely your responsibility to report if you suspect or see your design being sold by a RiskFree eCom Partner. Once reported, we can investigate to see if the design you are reporting is copy of your design. If so, then we can see which seller was the first to upload that design to Amazon.
However, we have NO control over other non-RiskFREEeCom Sellers on Amazon. They can attempt to copy your design and if you see that they have, you can contact Amazon, report that seller for copying your design and in most cases Amazon will pulled the copied listing from the seller who has copied your design.