I like how you act like its impossible for Europeans to play Blockland without using Wally Card
So explain how it is possible then. Your comment is redundant.
Couldn't Blockland Accept Wally Card Payments so Europeans could join blockland? I have the Demo but it gets boring after a while building alone with 150 bricks 
You've got a bunch of choices:
- Mail order
- Parents credit/debit card
- Convince them to get you a paypal card (you can top them up in a bunch of shops and use them almost anywhere)