1. Call the customer service hotline of Bank of Communications at 400-800-9888 (on the back of the credit card), select the language, and enter the card number and inquiry password according to the voice prompt.

2. Follow the voice prompts to select the option to activate the credit card.

3. Enter the last three digits of the number above the signature column on the back of the credit card, and then press # to confirm.

4. Enter the home phone number or mobile phone number as required, and press # to confirm.

5. At this time, if the input information matches the reserved information, the credit card is activated successfully. You can set your own transaction password and press # to confirm.

6. Enter the transaction password repeatedly and confirm it. After this step, your credit card can be used for consumer payment. It is worth noting that when applying for credit, one item in the application form is "China UnionPay merchants use passwords to confirm transactions when swiping their cards". If this item is not checked, you don't need to enter the transaction password when spending.