Login into "My Account"
Go to "Change Password" tab in My Account
Select Change Password and complete the form.
Keep in mind that your new password should satisfy following conditions:
Have at least 6 characters
Include at least one lower case letter
Include at least one upper case letter
Include at least one number
Simply request a cancel online from My Account. All you need to do is:
Log in to My Account
Go to My Orders
Find your order and select the item(s) that you wish to Cancel
Follow the cancel instructions, select Cancel option and you done!