1) If your order was purchased from our official website, you do not need to redeem your registration code. You just need to log in the product via your Wondershare ID to start using. You can follow this FAQ about how to activate PDFelement with Wondershare ID.
If you are using V9.6.1, click Help > Activate Filmora9 > Click here, input the Licensed e-mail and Registration code to register as below screenshot.
Wondershare Video Editor 3.0.2 Registration Code