MR stands for man. 11/12 is the validity period of the card: November 212.

I don't know about 15xx. It's all on the bank card. I think it's the serial number when I apply for the card.

14XX XXX is written in the signature position! 14XX The last four digits of your credit card number are commonly known as the' check code', and different bank cards have different uses for these three digits, but usually online payment requires these three digits, as well as transactions without cards, so you must protect the last three digits and don't show them to others.

Peony Sports Card is the first credit card product with the theme of sports and health launched by China Industrial and Commercial Bank to promote the development of national fitness, based on

credit cards need to be swiped five times a year, otherwise the annual fee will be very expensive.