The application allows vinti4 customers to associate their bank cards with the mobile phone number and carry out various payment operations such as purchases at POS without a card, withdrawals at ATMs without a card, mobile phone recharges, payment of bills, transfers, etc. The customer can also block the card for various situations, such as total blocking of the selected card, blocking online purchases, blocking operations at ATMs or abroad, translating into a fundamental tool for the control of card security.