Changing Your Password for Access to Plesk
To change your password, place the mouse pointer over your username located at the top of the page and click Edit Profile. Click 'Change Password' on left bottom.Type in your new password and confirm it.

Changing Your Contact Details
To change your contact details, place the mouse pointer over your username located at the top of the page, click Edit Profile or you can click 'Profile & Preferences' on left bottom. Change your contact details and confirm them.