1. There are three numbers on the credit card. The top row of the front date is the credit card number, and the bottom row of the date is the Ctrip card number. There is a row of numbers on the back that are similar to the password (but not the credit card password you set yourself)

2. Book a hotel with China Merchants Bank Ctrip Credit Card, first log in to Ctrip. com with your Ctrip card number and password, and then choose the credit card to pay or prepay in the reservation part after you are optimistic about the hotel. When you activate, carefully watch which number he asks you to enter on the credit card.