If you have already purchased Life Lock outside of SDPEBA you can easily move it to SDPEBA's plan. This will offer you better rates and a payroll deduction.
All you have to do is enroll in the plan. To learn how to do that click here.
Once your enrollment has been processed by Life Lock their system will automatically move your account over to SDPEBA and will refund you for any unused portion on your old account. You do not need to do anything and you do not need to call Life Lock to notify them of the change, it is all automatic!