You need to have a valid purchase code to be able to get access to theme support.

To get the purchase code:

1. Go to ThemeForest and login to your account.
2. In the upper right corner, hover over your username and click on Downloads.
3. Find Phox Purchase in the list of items you have bought.
4. Click on the Download button, and then click on the “License certificate & purchase code (text)” link.
5. In the text file, take note of the Item Purchase Code. It is similar to tBx8pcns-ruU058Nx-f9d5-lvT7HAac8b2er