Card declines when trying to buy the game from the website

[SokuGames]

I've tried to buy the game from the website and when I go to pay and accept to pay in my phone to confirm the transaction, it then says card declined.
I'm from europe if that has to do something with it. I have enough money on the card and I've tried to buy the game both from humble bundle and link.

[Rseding91]

You'll want to contact your card company first to see why it was declined. If they don't have answers, next you'd want to try the payment processor itself which as far as I can tell is https://stripe.com/ As far as I know we (Wube) specifically do not process payments and instead rely on third parties to do it.

[SokuGames]

I tried with another card from another company and it worked but thanks anyways.