Thank you for choosing Avada and welcome to the ThemeFusion family!
Avada come with 6 months of included support and free lifetime updates. Once the 6 months of included support is up, you have the opportunity to extend support coverage for 6 or 12 months further. If you choose to not extend your support, you will still be able to submit bug reports via email or item comments and still have access to our online documentation and video tutorials.
Envato clarifies item support here http://themeforest.net/page/item_support_policy
We have an advanced, secure ticket system to handle your requests. Support is limited to questions regarding the theme’s features or problems with the theme. We are not able to provide support for code customizations or third-party plugins. If you need help with anything other than minor customizations of your theme, we suggest enlisting the help of a developer.