After you start your subscription for Rife Pro theme, you will get e-mail with confirmation about that. There you can also find license code that is needed to activate theme and to use our support forum.
Please see screen shots below, that explains where to add license code:
Where is the license code in e-mail
License code (marked with red border and arrow) can be found in e-mail from us, after you subscribe for one of our plans.
Where to register license code in theme
Image shows where to insert license code in theme to activate it. You will have to get to Appearance → Rife License & Info to find this form.
Where to register license code in support forum
Where to insert License code while registering on support forum.