ArdathkSheyna  If you're talking about Cornucopia3D's site, I have never successfully placed an order without help from a support person for exactly the same reason - credit card declined.  However, if you check your credit card/bank online, you may well find that a charge was in fact successfully placed.  It will fall off the card after a few days, though, if you don't follow through.

I've tried from several browsers and several locations, always with the same problem, so now it's scared me. I'd like to get Skinvue6, though, when it becomes available.