You complained and your role still exists. Verify the seller listing who copied your data again now. If the copied data is still there then you should re-complain.
Action generally be a removal of listing and a warning to the Seller who copied.
As a coseller, I think your role is over by complaining and now concentrating on your sales and listings would be needed. You can add watermark for future listings. But we believe, you can ignore the copy unless its paining you much.
Regards