Yeah that was it.
I tought the challenge token was meant to give the card away or something like that.
I got a new problem tho.
First card worked well but my last 2 have been blocked. Seems like there's nothing you can do on your end but it's annoying to have to call them for that.
If it dosen't do that for every card this app could be a game changer to live in a bitcoin standard.