Ключевые слова: banking, bill, business, buy, buying, card, cash, cashier, checkout, commerce, communication, computer, connection, consumerism, contactless, credit, customer, device, digital, ecommerce, electronic, exchange, finance, financial, internet, laptop, machine, mobile, money, online, pay, paying, payment, phone, purchase, retail, security, selling, service, shop, shopping, smartphone, store, technology, transaction, transfer, wireless,