I bought BookyAI Listen. How do I unlock it?

If you bought it with the same email as your BookyAI account, you do not have to do anything: update BookyAI to version 1.9.14 or later, open it on the computer where your BookyAI license is active, click "Listen" in the sidebar, and it unlocks by itself within a minute. If it still shows the unlock screen, click "Check again". If you bought it with a different email, you received a Listen key by email (format BND-XXXX-XXXX-XXXX): enter it on the Listen page and click Activate. Your main BookyAI key does not work there; the Listen add-on has its own key.