Our Fleet/Fuel card management system has hardware and software complex for management and accounting of fuel sales at a single petrol station or a petrol station network using RFID fuel cards with fuel volume, money and discount wallets or their combinations. The system allows to replace usage of cash and coupons to more reliable and convenient solution using fuel and money cards. The fleet card system can be used by customers for petrol refilling and allows the customer to earn loyalties or discounts The system allows to issue fuel and discount cards for customers and also the cards management and accounting of all sales using fuel cards, to manage customer accounts, and to set flexible discount system.