"if you can't sell a debit card with the aspect and image of the one you are presenting at your site, don't use that image at all or you will be cheating your clients."
Really, it matters that much what the card looks like? Personally, if I ordered a debit card, I wouldn't care whether it looks different from what is pictured on the site, as long as it WORKS. No matter though, I have updated the faq to show the correct image of the card:
https://bitplastic.com/bitcoin-debit-cardWhile I like the service, a huge part of the reason I ordered one of these today was to have a functional debit card with a bitcoin logo on it. Despite reading the FAQ, I missed the card images at the bottom. If I had seen that, I would not have ordered. I suggest that if you ever get to be in the position to have cards produced with your own artwork, you offer a free replacement to existing customers. In the meantime I suggest you put on each mock image of a card on the site that the image is 'not actual card imagery'.