Where can I use my card? Aline C. 24 September 2020 10:56 Updated The VIABUY Prepaid Mastercard® is an official and internationally licensed Mastercard payment card. It is accepted all over the world by all merchants and point of service terminals that are connected to the online Mastercard payment network. Related articles Can I order the card also if I live outside the European Union? Who is eligible for a VIABUY Prepaid Mastercard? What is the difference between the gold and the black card? Why is the payment rejected? How can I activate my card?