If you purchased theme on Themeforest (Envato) marketplace
If you purchased theme on Creativemarket marketplace
Your purchase code will be: CRM-NICKNAME-THEME
Where NICKNAME is your login/nickname on Creativemarket, and THEME is a theme short name.
For example if your login is John1982 and your theme is Aerin your purchase code will be:
If you downloaded theme from Envato Elements
Author support does not available for items downloaded on Envato Elements. If you need support for your item you must purchase it on Themeforest.