Theme can be sold by anyone. The most important parts are to help customer to get the actual output which he/she wants using your theme. Motto of our support team is help customers to reach that level of satisfactions. May be your theme have some issues, but its very important to listen to your customer carefully and fulfil their needs.
Our team given support to more than 200 Free Installation for past time, and the feedback are given our satisfied customers only.
Our Profile : https://themeforest.net/user/0effortthemes