Hi if i purchase a theme and worst case the theme doesn’t work after 6 months. Who will provide support to fix it?
You can extend and renew your support at any time, even after those 6 months. See this Help article:
If the author by chance stops supporting the item after your period expires and you’re unable to extend it then you can also hire a vetted freelancer from Envato Studio. https://studio.envato.com/