If it is a China Merchants Bank credit card, you can log in to the mobile phone pocket life: select "My → Data Management → Contact Information → Personal Email" and modify the email address according to the prompts; Select My → Settings → Password Management → Login Password/Payment Password, and modify or reset the password according to the prompts. The specific method is as follows:

1, open the mobile phone China Merchants Bank credit card software Pocket Life, find data management on my page, and click Enter;

2. In data management, find the contact information: mobile phone and email options, and click Enter;

3. You can see your personal email address in the contact information page. If you need to modify, click on the personal email;

4. Enter a new email address in the email address modification column, and click Next to modify the email address successfully;

5. Return to my page, find the setting options in the upper right corner, and click Enter Settings;

6. Find password management on the settings page, and click Enter;

7. You can operate the login password and payment password. Take the login password as an example, and click the login password option.

8. Enter the login password page, with two options: modify and forget. You can choose to modify or reset the login password according to your own needs, and the payment method is the same.