Payroll Service not Working with QuickBooks Pro 2016

Hi Jessica. I had a payroll account but in order to upgrade my quickbooks pro 2015 to 2016 PRO, i purchased a Quickbooks PRO 2016 with payroll. Therefore I canceled my subscription but now I can not activate my payroll service with the box license number. Can You help me? Being around working with this for the last two hours !!