displaying license info

Hi, new user here, just noticed that the last half dozen sites I have built on theme forest HTML have all been suspended. I think i am supposed to display license info somewhere in the code. Can anyone please help me out here, what am I supposed to display etc to prove I have bought the license? Thx, Aussie in New York
… Tech support is saying 4 day wait for reply on email support.

You don’t need to display licenses in the code.

Do you mean sites you build using themeforest templates or sites you are submitting to themeforest for sale?