If you want to get some traction here, (so far not a single comment from forum users about using your card) you should consider giving certain amount of cards for free so users (preferably those with some reputation here) can test it and give their honest opinion. Iirc, what you offered to one of the users wasn't the free card, but moneyback guarantee or something along those lines.
Beware, OP may conclude (again?) that all the noise you've made (
in the other, messier topic) was because you'd want a bribe/free

And by extrapolation he may conclude that we all wanted a bribe and that the criticism (constructive or not) and drama was because of this.
And at least my posts were driven by an attempt to help the business - if it's legit - and the possible customers too. And for an overall best short description, LoyceV has nailed it:
I see potential, but I also see several red flags.
My advise to OP was to hire, at least for short term, somebody good at PR (and to be clear: no, I don't want that job).
The PR people would know how to handle this; maybe they would have given out a few free cards, maybe they would have started other types of campaigns, I don't know.
On the other hand, slow and steady start (if what OP tells is real) is also an option and, sooner or later, bitcointalk users will also get to give feedback.
And one thing I'm curious about, maybe OP (CriptoDebit.com) can help, if it's not so big secret: in what country is the card issuer registered? Or, if that's such a big a secret, can you tell whether it Russia/China or not?