I’m a seller of the Envato stores (CodeCanyon). So I’m bound to their regulations. This page tells you everything about what is included in support and what not.

In short, this is what is included:

• I’m happy to help answering questions about how to use the item.
• Answering technical questions about the item (and included third party assets).
• Help with defects in the item or included third party assets.
• Item updates to ensure ongoing compatibility and to resolve security vulnerabilities.

This is what is not included:

• Item customization.
• Installation of the item.
• Hosting, server environment, or software.
• Help from authors of included third party assets.