In this commercial, we introduce our four MBNA ‘number nerds’. Although they are dedicated to all things credit card related, they aren’t actually interested in the exciting things you can spend money on - like holidays, music gigs and spa weekends. Everywhere they go, we see them dressed in work clothes, feeling deeply uncomfortable in different situations. But when they get into the MBNA office, they are unashamedly brilliant financial wizards. They spin credit cards on their fingers. They use three calculators at once – with one hand. So they may not be good at having fun, but when it comes to credit, they are payment ninjas.