Ah right. I see. Your photo shows Spirit Camera with PEGI age rating, but the German subtitle. Interesting, I had no idea that they released such a version.
I didn't send them a photo of the backside, just a photo of the case opened and all the stuff that was in there and another photo of the invoice. In your case it could help to also make a photo of the front and/or backside. The Nintendo website only allows 2 attachments, so it's a bit problematic (and it also got limited to 1MB each). You could use an image software to splice 2 photos together. You could send an email directly to info -AT- nintendo.ch / info -AT- nintendo.at too, although I'm not sure if it works out - I never did this, I only replied to Nintendo emails
Definitely do mention that it was shrink-wrapped and that it's a CH/AT PEGI copy. You could also send that photo as well as additional proof.
Nintendo Switzerland definitely specifies Spirit Camera as a way of earning stars, so say that too. Should get through.
http://www.nintendo.ch/de/Club-Nint...ne-bekommt/Wie-man-Sterne-bekommt-622685.html
Nintendo Austria does so as well:
http://www.nintendo.at/Club-Nintend...ne-bekommt/Wie-man-Sterne-bekommt-622685.html