My custom skill works in the developer console - shows the json request and responds with the correct answer. I load echosim.io in my browser but it doesnt respond to my custom skill invocation. I have looked in the Alexa app on my mobile phone and the skill is there saying 'Account linking required'. Is this the Privacy and Compliance section which I have completed and am awaiting a response. I thought I could use Echosim.io for testing without that process.