Customization is not included in theme price at Themeforest (and Codecanyon). If you are requesting customization help which only requires me to publish a couple lines of code (typically through CSS), I will be glad to assist you. If however your query requires more than that amount of code to be published, these customization requests are considered extensive and I can’t help you about them.
Which customization requests are considered extensive?
For example; Adding a new color scheme to the theme/plugin, adding a slider from another theme, changing layout, adding a plugin compability (like woocommerce), including a feature that is not included in the theme/plugin etc.
I’m not available for customization work. If you need professional help with installation WordPress, setting up a WordPress theme, implementing a new feature or customizing a theme or a plugin, you can hire a developer from Envato Studio !