CardPool — terrible

Not sure I can advise this crap.
They sold me a card with an expired date. Or maybe it was already used. In general, it wasn't working at all. How don't they even feel ashamed for doing this? I would close this company if something like this happened. It's such a huge shame.
But the most terrible thing is that they have never picked up the phone and all of my emails were left unanswered.
What kind of service is that?