Blockchain-based payment verification services; Credit card transaction processing services; Credit card transaction processing services provided via mobile app; Mobile banking services; Banking services provided by mobile telephone connections; Banking services provided via mobile app; Credit card payment processing services; Cryptocurrency payment processing; Cryptocurrency trading services; Cryptocurrency exchange services featuring blockchain technology; Financial trading of cryptocurrency; Issuing of pre-paid gift cards; Issuing pre-paid vouchers exchangeable for transportation services, touristic services, food services, downloadable goods and gifts; Processing of credit card payments; Processing of electronic wallet payments; Providing multiple payment options by means of customer-operated electronic terminals available on-site in retail stores; Virtual currency trading services