cant buy at website

i want to buy coins at the website but i have an error

La moneda de pago seleccionada no está admitida. Por favor, seleccione una moneda diferente o póngase en contacto con nuestro servicio de atención al cliente en help.xsolla.com. Error 3001

tryed to talk to xsolla ppl but there is always a bot , not even AI just a bot and they didnt helped me
literally i want to give my money to grinding gear but they dont want to take it is kinda crazy