How trustworthy is the company? Aline C. 24 September 2020 10:35 Updated VIABUY is a brand of Crosscard S.A., a Luxembourg-based e-money institute, which is specialized in the issuing of electronic money. Crosscard S.A. is regulated by the Commission de Surveillance du Secteur Financier (CSSF). Related articles Does the card also have an own bank account? Complaint Procedure How do I make a bank transfer to my card? What amounts can be paid contactless? What are the benefits of the VIABUY Mastercard?