If you want to be an Ambassador really badly, I think you should read these requirements you have to do in order for your chances to increase for becoming an Ambassador.
1. Have a creative blog/ youtube channel that possibly relates to the subject about Planet Cazmo
2. Dont post about any other games except Planet Cazmo
3. Be respectful to all cazmos
4. DONT confront misbehaving players, ignore and report
5. As always, Spread the World!
Good luck on making it to be enrolled as an official Ambassador!