In many countries, producers of products subject to EPR requirements will be prosecuted with fines, if they are not able to prove their EPR compliance. In many countries, Electronic Marketplaces are legally obliged to confirm that their sellers are EPR compliant in the country they sell. If sellers can not prove their EPR compliance to the respective Marketplaces, they can be suspended from selling their non-compliant listings under EPR product categories.
These regulations vary from country to country and can possibly be dealt with differently by each Marketplace. To determine the specific consequences in your situation, we recommend to contact the respective PRO in the country you are selling your product in.