Easy! First, login to your currently existing SimpleBills account. Once you’ve done that click the tab on the top of the page that says Renew Service. Just select whether you’re staying at the same address or moving to a new one, and continue filling out the application.
Note: If the move out date on your SimpleBills account has passed, the renew tab will not show an option for renewing for the same address. You will need to enter either the current date or a future date for the "Start Date" at this address.