In the EU they have to write these things upfront in big letters. I doubt this is legal.. You should file a complaint with you consumer protection agency. And

In the EU they have to write these things upfront in big letters. I doubt this is legal.. You should file a complaint with you consumer protection agency. And ask you bank to cancel the payment, just call it fraud. I know, it's easy to feel like you were being stupid. But they are intentionally preying in you, it's not by accident, it's by design. That IMO makes it fraud, fight back.