It's my first purchasing something from Cubebrush (I'm trying to purchase Marc Brunet's Art School) and I can't seem to use my debit card (Revolut Maestro card) nor my credit card (Visa) during checkout.
I tried adding the details into the "Credit Card" section, but nothing happens. The green "Pay Now" button is unclickable. What should I do?
(I'm paying from Switzerland)