My design sold on Shapeways...but not by me

Aparently some user named "Next Copter" has copied one of my designs.
Version 2 of my GoPro to NERF rail connector including all photos to shapeways.
I'm publishing this design as Creative Commons CC-BY-NC-SA,
that means NON COMMERCIAL
that means ATTRIBUTION
that means SHARE ALIKE
that means the design, I didn't license the photos at all.

I have already contacted the Shapways abuse department and am waiting for the legal identity of the offender and how many he did sell there.
Then I'll decide about further steps. Update: Shapeways informed me that another copy by a user named "Svenstead" has appeared.