7.1 Surround Sound – Unable to activate my new code

I have a new Razer headset registered to my Razer ID, and I received a new 7.1 Surround Sound activation code. However, my account already has an old 7.1 license activated from a previous headset that is now broken. The application does not give me any option to remove the old license or enter the new code. How can I activate the new code on the same Razer ID?