Failed donation no accept

Hello, I'm from Argentina and I'm trying to donate to the server to have benefits, but when I try to pay through my Master Card it says "The transaction was not finished!" with this card I have made several international or digital payments through Battle.net steam origin league of legends and other games. Any solution or an answer? Thank you very much and greetings.
If something is not understood excuse me, I'm using Google translator


Hola,Soy de Argentina y estoy intentando donar al servidor para tener beneficios, pero al intentar pagar mediante mi tarjeta Master Card me dice "¡La transacción no se terminó!" con esta tarjeta he hecho varios pagos internacionales o digitales mediante Battle.net steam origin league of legends y demas juegos. Alguna solución o una respuesta? Muchas gracias y un saludo.

It's most likely Paymentwalls anti-fraud system that does not let you donate. You have 2 options:
1. Contact Paymentwall support (they will most likely ask you for pictures of your card and some documents).
2. Use prepaid cards (like Paysafecard or Mint) or gift cards to donate if you have those payment methods available on donation window.